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.htaccess

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+#####
+#
+# Example .htaccess file for TYPO3 CMS - for use with Apache Webserver
+#
+# This file includes settings for the following configuration options:
+#
+# - Compression
+# - Caching
+# - MIME types
+# - Cross Origin requests
+# - Rewriting and Access
+# - Miscellaneous
+# - PHP optimisation
+#
+# If you want to use it, you have to copy it to the root folder of your TYPO3 installation (if its
+# not there already) and rename it to '.htaccess'. To make .htaccess files work, you might need to
+# adjust the 'AllowOverride' directive in your Apache configuration file.
+#
+# IMPORTANT: You may need to change this file depending on your TYPO3 installation!
+#            Consider adding this file's content to your webserver's configuration directly for speed improvement
+#
+# Lots of the options are taken from https://github.com/h5bp/html5-boilerplate/blob/master/dist/.htaccess
+#
+####
+
+#RewriteEngine On
+#RewriteCond % {HTTPS} off
+#RewriteRule (.*) https://%{HTTP_HOST}/$1 [R=301,L]
+
+### Begin: Compression ###
+
+# Compressing resource files will save bandwidth and so improve loading speed especially for users
+# with slower internet connections. TYPO3 can compress the .js and .css files for you.
+# *) Uncomment the following lines and
+# *) Set $GLOBALS['TYPO3_CONF_VARS']['BE']['compressionLevel'] = 9 for the Backend
+# *) Set $GLOBALS['TYPO3_CONF_VARS']['FE']['compressionLevel'] = 9 together with the TypoScript properties
+#    config.compressJs and config.compressCss for GZIP compression of Frontend JS and CSS files.
+
+#<FilesMatch "\.js\.gzip$">
+#	AddType "text/javascript" .gzip
+#</FilesMatch>
+#<FilesMatch "\.css\.gzip$">
+#	AddType "text/css" .gzip
+#</FilesMatch>
+#AddEncoding gzip .gzip
+
+<IfModule mod_deflate.c>
+	# Force compression for mangled `Accept-Encoding` request headers
+	<IfModule mod_setenvif.c>
+		<IfModule mod_headers.c>
+			SetEnvIfNoCase ^(Accept-EncodXng|X-cept-Encoding|X{15}|~{15}|-{15})$ ^((gzip|deflate)\s*,?\s*)+|[X~-]{4,13}$ HAVE_Accept-Encoding
+			RequestHeader append Accept-Encoding "gzip,deflate" env=HAVE_Accept-Encoding
+		</IfModule>
+	</IfModule>
+
+	# Compress all output labeled with one of the following media types.
+	#
+	# (!) For Apache versions below version 2.3.7 you don't need to
+	# enable `mod_filter` and can remove the `<IfModule mod_filter.c>`
+	# and `</IfModule>` lines as `AddOutputFilterByType` is still in
+	# the core directives.
+	#
+	# https://httpd.apache.org/docs/current/mod/mod_filter.html#addoutputfilterbytype
+
+	<IfModule mod_filter.c>
+		AddOutputFilterByType DEFLATE application/atom+xml \
+			application/javascript \
+			application/json \
+			application/ld+json \
+			application/manifest+json \
+			application/rdf+xml \
+			application/rss+xml \
+			application/schema+json \
+			application/vnd.geo+json \
+			application/vnd.ms-fontobject \
+			application/x-font-ttf \
+			application/x-javascript \
+			application/x-web-app-manifest+json \
+			application/xhtml+xml \
+			application/xml \
+			font/eot \
+			font/opentype \
+			image/bmp \
+			image/svg+xml \
+			image/vnd.microsoft.icon \
+			image/x-icon \
+			text/cache-manifest \
+			text/css \
+			text/html \
+			text/javascript \
+			text/plain \
+			text/vcard \
+			text/vnd.rim.location.xloc \
+			text/vtt \
+			text/x-component \
+			text/x-cross-domain-policy \
+			text/xml
+	</IfModule>
+
+	<IfModule mod_mime.c>
+		AddEncoding gzip svgz
+	</IfModule>
+</IfModule>
+
+### End: Compression ###
+
+
+
+### Begin: Browser caching of resource files ###
+
+# This affects Frontend and Backend and increases performance.
+<IfModule mod_expires.c>
+
+	ExpiresActive on
+	ExpiresDefault                                      "access plus 1 month"
+
+	ExpiresByType text/css                              "access plus 1 year"
+
+	ExpiresByType application/json                      "access plus 0 seconds"
+	ExpiresByType application/ld+json                   "access plus 0 seconds"
+	ExpiresByType application/schema+json               "access plus 0 seconds"
+	ExpiresByType application/vnd.geo+json              "access plus 0 seconds"
+	ExpiresByType application/xml                       "access plus 0 seconds"
+	ExpiresByType text/xml                              "access plus 0 seconds"
+
+	ExpiresByType image/vnd.microsoft.icon              "access plus 1 week"
+	ExpiresByType image/x-icon                          "access plus 1 week"
+
+	ExpiresByType text/x-component                      "access plus 1 month"
+
+	ExpiresByType text/html                             "access plus 0 seconds"
+
+	ExpiresByType application/javascript                "access plus 1 year"
+	ExpiresByType application/x-javascript              "access plus 1 year"
+	ExpiresByType text/javascript                       "access plus 1 year"
+
+	ExpiresByType application/manifest+json             "access plus 1 week"
+	ExpiresByType application/x-web-app-manifest+json   "access plus 0 seconds"
+	ExpiresByType text/cache-manifest                   "access plus 0 seconds"
+
+	ExpiresByType audio/ogg                             "access plus 1 month"
+	ExpiresByType image/bmp                             "access plus 1 month"
+	ExpiresByType image/gif                             "access plus 1 month"
+	ExpiresByType image/jpeg                            "access plus 1 month"
+	ExpiresByType image/png                             "access plus 1 month"
+	ExpiresByType image/svg+xml                         "access plus 1 month"
+	ExpiresByType image/webp                            "access plus 1 month"
+	ExpiresByType video/mp4                             "access plus 1 month"
+	ExpiresByType video/ogg                             "access plus 1 month"
+	ExpiresByType video/webm                            "access plus 1 month"
+
+	ExpiresByType application/atom+xml                  "access plus 1 hour"
+	ExpiresByType application/rdf+xml                   "access plus 1 hour"
+	ExpiresByType application/rss+xml                   "access plus 1 hour"
+
+	ExpiresByType application/vnd.ms-fontobject         "access plus 1 month"
+	ExpiresByType font/eot                              "access plus 1 month"
+	ExpiresByType font/opentype                         "access plus 1 month"
+	ExpiresByType application/x-font-ttf                "access plus 1 month"
+	ExpiresByType application/font-woff                 "access plus 1 month"
+	ExpiresByType application/x-font-woff               "access plus 1 month"
+	ExpiresByType font/woff                             "access plus 1 month"
+	ExpiresByType application/font-woff2                "access plus 1 month"
+
+	ExpiresByType text/x-cross-domain-policy            "access plus 1 week"
+
+</IfModule>
+
+### End: Browser caching of resource files ###
+
+
+### Begin: MIME types ###
+
+# Proper MIME types for all files
+<IfModule mod_mime.c>
+
+    RemoveType .html .htm
+    <FilesMatch ".+\.html?$">
+        AddType text/html .html
+        AddType text/html .htm
+    </FilesMatch>
+
+    RemoveType .svg .svgz
+    <FilesMatch ".+\.svgz?$">
+        AddType image/svg+xml .svg
+        AddType image/svg+xml .svgz
+    </FilesMatch>
+
+
+
+	# Data interchange
+	AddType application/atom+xml                        atom
+	AddType application/json                            json map topojson
+	AddType application/ld+json                         jsonld
+	AddType application/rss+xml                         rss
+	AddType application/vnd.geo+json                    geojson
+	AddType application/xml                             rdf xml
+
+	# JavaScript
+	AddType application/javascript                      js
+
+	# Manifest files
+	AddType application/manifest+json                   webmanifest
+	AddType application/x-web-app-manifest+json         webapp
+	AddType text/cache-manifest                         appcache
+
+	# Media files
+
+	AddType audio/mp4                                   f4a f4b m4a
+	AddType audio/ogg                                   oga ogg opus
+	AddType image/bmp                                   bmp
+	AddType image/webp                                  webp
+	AddType video/mp4                                   f4v f4p m4v mp4
+	AddType video/ogg                                   ogv
+	AddType video/webm                                  webm
+	AddType video/x-flv                                 flv
+	AddType image/x-icon                                cur ico
+
+	# Web fonts
+	AddType application/font-woff                       woff
+	AddType application/font-woff2                      woff2
+	AddType application/vnd.ms-fontobject               eot
+	AddType application/x-font-ttf                      ttc ttf
+	AddType font/opentype                               otf
+
+	# Other
+	AddType application/octet-stream                    safariextz
+	AddType application/x-bb-appworld                   bbaw
+	AddType application/x-chrome-extension              crx
+	AddType application/x-opera-extension               oex
+	AddType application/x-xpinstall                     xpi
+	AddType text/vcard                                  vcard vcf
+	AddType text/vnd.rim.location.xloc                  xloc
+	AddType text/vtt                                    vtt
+	AddType text/x-component                            htc
+
+</IfModule>
+
+# UTF-8 encoding
+AddDefaultCharset utf-8
+<IfModule mod_mime.c>
+	AddCharset utf-8 .atom .css .js .json .manifest .rdf .rss .vtt .webapp .webmanifest .xml
+</IfModule>
+
+### End: MIME types ###
+
+
+### Begin: Cross Origin ###
+
+# Send the CORS header for images when browsers request it.
+<IfModule mod_setenvif.c>
+	<IfModule mod_headers.c>
+		<FilesMatch "\.(bmp|cur|gif|ico|jpe?g|png|svgz?|webp)$">
+			SetEnvIf Origin ":" IS_CORS
+			Header set Access-Control-Allow-Origin "*" env=IS_CORS
+		</FilesMatch>
+	</IfModule>
+</IfModule>
+
+# Allow cross-origin access to web fonts.
+<IfModule mod_headers.c>
+	<FilesMatch "\.(eot|otf|tt[cf]|woff2?)$">
+		Header set Access-Control-Allow-Origin "*"
+	</FilesMatch>
+</IfModule>
+
+### End: Cross Origin ###
+
+
+
+### Begin: Rewriting and Access ###
+
+# You need rewriting, if you use a URL-Rewriting extension (RealURL, CoolUri).
+
+<IfModule mod_rewrite.c>
+
+	# Enable URL rewriting
+	RewriteEngine On
+
+	# Store the current location in an environment variable CWD to use
+	# mod_rewrite in .htaccess files without knowing the RewriteBase
+	RewriteCond $0#%{REQUEST_URI} ([^#]*)#(.*)\1$
+	RewriteRule ^.*$ - [E=CWD:%2]
+
+	# Rules to set ApplicationContext based on hostname
+	#RewriteCond %{HTTP_HOST} ^dev\.example\.com$
+	#RewriteRule .? - [E=TYPO3_CONTEXT:Development]
+	#RewriteCond %{HTTP_HOST} ^staging\.example\.com$
+	#RewriteRule .? - [E=TYPO3_CONTEXT:Production/Staging]
+	#RewriteCond %{HTTP_HOST} ^www\.example\.com$
+	#RewriteRule .? - [E=TYPO3_CONTEXT:Production]
+
+	# Rule for versioned static files, configured through:
+	# - $GLOBALS['TYPO3_CONF_VARS']['BE']['versionNumberInFilename']
+	# - $GLOBALS['TYPO3_CONF_VARS']['FE']['versionNumberInFilename']
+	# IMPORTANT: This rule has to be the very first RewriteCond in order to work!
+	RewriteCond %{REQUEST_FILENAME} !-f
+	RewriteCond %{REQUEST_FILENAME} !-d
+	RewriteRule ^(.+)\.(\d+)\.(php|js|css|png|jpg|gif|gzip)$ %{ENV:CWD}$1.$3 [L]
+
+	# Access block for folders
+	RewriteRule _(?:recycler|temp)_/ - [F]
+	RewriteRule fileadmin/templates/.*\.(?:txt|ts)$ - [F]
+	RewriteRule ^(?:vendor|typo3_src|typo3temp/var) - [F]
+	RewriteRule (?:typo3conf/ext|typo3/sysext|typo3/ext)/[^/]+/(?:Configuration|Resources/Private|Tests?|Documentation|docs?)/ - [F]
+
+	# Block access to all hidden files and directories with the exception of
+	# the visible content from within the `/.well-known/` hidden directory (RFC 5785).
+	RewriteCond %{REQUEST_URI} "!(^|/)\.well-known/([^./]+./?)+$" [NC]
+	RewriteCond %{SCRIPT_FILENAME} -d [OR]
+	RewriteCond %{SCRIPT_FILENAME} -f
+	RewriteRule (?:^|/)\. - [F]
+
+	# Stop rewrite processing, if we are in the typo3/ directory or any other known directory
+	# NOTE: Add your additional local storages here
+	RewriteRule ^(?:typo3/|fileadmin/|typo3conf/|typo3temp/|uploads/|favicon\.ico) - [L]
+
+	# If the file/symlink/directory does not exist => Redirect to index.php.
+	# For httpd.conf, you need to prefix each '%{REQUEST_FILENAME}' with '%{DOCUMENT_ROOT}'.
+	RewriteCond %{REQUEST_FILENAME} !-f
+	RewriteCond %{REQUEST_FILENAME} !-d
+	RewriteCond %{REQUEST_FILENAME} !-l
+	RewriteRule ^.*$ %{ENV:CWD}index.php [QSA,L]
+
+</IfModule>
+
+# Access block for files
+# Apache < 2.3
+<IfModule !mod_authz_core.c>
+	<FilesMatch "(?i:^\.|^#.*#|^(?:ChangeLog|ToDo|Readme|License)(?:\.md|\.txt)?|^composer\.(?:json|lock)|^ext_conf_template\.txt|^ext_typoscript_constants\.txt|^ext_typoscript_setup\.txt|flexform[^.]*\.xml|locallang[^.]*\.(?:xml|xlf)|\.(?:bak|co?nf|cfg|ya?ml|ts|typoscript|tsconfig|dist|fla|in[ci]|log|sh|sql(?:\..*)?|sqlite(?:\..*)?|sw[op]|git.*|rc)|.*~)$">
+		Order allow,deny
+		Deny from all
+		Satisfy All
+	</FilesMatch>
+</IfModule>
+# Apache ≥ 2.3
+<IfModule mod_authz_core.c>
+	<If "%{REQUEST_URI} =~ m#(?i:/\.|/\x23.*\x23|/(?:ChangeLog|ToDo|Readme|License)(?:\.md|\.txt)?|/composer\.(?:json|lock)|/ext_conf_template\.txt|/ext_typoscript_constants\.txt|/ext_typoscript_setup\.txt|flexform[^.]*\.xml|locallang[^.]*\.(?:xml|xlf)|\.(?:bak|co?nf|cfg|ya?ml|ts|typoscript|tsconfig|dist|fla|in[ci]|log|sh|sql(?:\..*)?|sqlite(?:\..*)?|sw[op]|git.*|rc)|.*~)$#">
+		Require all denied
+	</If>
+</IfModule>
+
+# Block access to vcs directories
+<IfModule mod_alias.c>
+	RedirectMatch 404 /\.(?:git|svn|hg)/
+</IfModule>
+
+### End: Rewriting and Access ###
+
+
+
+### Begin: Miscellaneous ###
+
+# 404 error prevention for non-existing redirected folders
+Options -MultiViews
+
+# Make sure that directory listings are disabled.
+<IfModule mod_autoindex.c>
+	Options -Indexes
+</IfModule>
+
+<IfModule mod_headers.c>
+	# Force IE to render pages in the highest available mode
+	Header set X-UA-Compatible "IE=edge"
+	<FilesMatch "\.(appcache|crx|css|eot|gif|htc|ico|jpe?g|js|m4a|m4v|manifest|mp4|oex|oga|ogg|ogv|otf|pdf|png|safariextz|svgz?|ttf|vcf|webapp|webm|webp|woff2?|xml|xpi)$">
+		Header unset X-UA-Compatible
+	</FilesMatch>
+
+	# Reducing MIME type security risks
+	Header set X-Content-Type-Options "nosniff"
+</IfModule>
+
+# ETag removal
+<IfModule mod_headers.c>
+	Header unset ETag
+</IfModule>
+FileETag None
+
+### End: Miscellaneous ###
+
+
+# Add your own rules here.
+
+# Erzwinge PHP 7.4 aus dem Docker-Container für alle PHP-Dateien
+<FilesMatch \.php$>
+    SetHandler "proxy:fcgi://127.0.0.1:9074"
+</FilesMatch>

fileadmin/.htaccess

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+# This file applies Content-Security-Policy (CSP) HTTP headers
+# to directories containing (user uploaded) resources like
+# /fileadmin/ or /uploads/
+
+<IfModule mod_headers.c>
+    # matching requested *.pdf files only (strict rules block Safari showing PDF documents)
+    <FilesMatch "\.pdf$">
+        Header set Content-Security-Policy "default-src 'self' 'unsafe-inline'; script-src 'none'; object-src 'self'; plugin-types application/pdf;"
+    </FilesMatch>
+    # matching anything else, using negative lookbehind pattern
+    <FilesMatch "(?<!\.pdf)$">
+        Header set Content-Security-Policy "default-src 'self'; script-src 'none'; style-src 'none'; object-src 'none';"
+    </FilesMatch>
+
+    # =================================================================
+    # Variations to send CSP header only when it has not be set before.
+    # Adjust all `Header set` instructions above
+    #     Header set Content-Security-Policy "<directives>"
+    # with substitutes shown below
+    #
+    # -----------------------------------------------------------------
+    # a) for Apache 2.4 (having `setifempty`)
+    # -----------------------------------------------------------------
+    #     Header setifempty Content-Security-Policy "<directives>"
+    #
+    # -----------------------------------------------------------------
+    # b) for Apache 2.2 (using fallbacks)
+    # -----------------------------------------------------------------
+    #     Header append Content-Security-Policy ""
+    #     Header edit Content-Security-Policy "^$" "<directives>"
+    #
+    # =================================================================
+</IfModule>

fileadmin/_temp_/.htaccess

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+# This file restricts access to the fileadmin/_temp_ directory. It is
+# meant to protect temporary files which could contain sensible
+# information. Please do not touch.
+
+# Apache < 2.3
+<IfModule !mod_authz_core.c>
+	Order allow,deny
+	Deny from all
+	Satisfy All
+</IfModule>
+
+# Apache ≥ 2.3
+<IfModule mod_authz_core.c>
+	Require all denied
+</IfModule>

fileadmin/_temp_/index.html

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+<!DOCTYPE html>
+<html>
+<head>
+	<title></title>
+	<meta http-equiv=Refresh Content="0; Url=/"/>
+</head>
+</html>

fileadmin/templates/Login/Login.html

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+<html xmlns:f="http://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers" data-namespace-typo3-fluid="true">
+<div class="pure-form">
+    <f:flashMessages />
+    <f:if condition="{cookieWarning}">
+        <f:render partial="CookieWarning" />
+    </f:if>
+
+    <f:if condition="{messageKey}">
+        <h3>
+            <f:render partial="RenderLabelOrMessage" arguments="{key: '{messageKey}_header'}" />
+        </h3>
+        <p>
+            <f:render partial="RenderLabelOrMessage" arguments="{key: '{messageKey}_message'}" />
+        </p>
+    </f:if>
+    <f:if condition="{onSubmit}">
+        <f:then>
+            <f:form target="_top" fieldNamePrefix="" action="login" onsubmit="{onSubmit}">
+                <f:render section="content" arguments="{_all}" />
+            </f:form>
+        </f:then>
+        <f:else>
+            <f:form target="_top" fieldNamePrefix="" action="login">
+                <f:render section="content" arguments="{_all}" />
+            </f:form>
+        </f:else>
+    </f:if>
+
+    <f:if condition="{settings.showForgotPassword}">
+        <f:link.action action="recovery" controller="PasswordRecovery">
+            <f:render partial="RenderLabelOrMessage" arguments="{key: 'forgot_header'}" />
+        </f:link.action>
+    </f:if>
+
+    <f:section name="content">
+
+        <fieldset>
+            <legend>
+                <f:translate key="login" />
+            </legend>
+            <table class="pure-table  pure-table-striped" style="width: 60%"><tr>
+                <label>
+
+                    <td><f:translate key="username" /></td>
+                    <td><f:form.textfield name="user" /></td>
+
+                </label>
+            </tr>
+            <tr>
+                <label>
+                    <td><f:translate key="password" /></td>
+                    <td><f:form.password name="pass" data="{rsa-encryption: ''}" /></td>
+                </label>
+            </tr>
+
+
+            <f:if condition="{permaloginStatus} > -1">
+                <div>
+                    <label>
+                        <f:translate id="permalogin" />
+                        <f:if condition="{permaloginStatus} == 1">
+                            <f:then>
+                                <f:form.hidden name="permalogin" value="0" additionalAttributes="{disabled: 'disabled'}" />
+                                <f:form.checkbox name="permalogin" id="permalogin" value="1" checked="checked" />
+                            </f:then>
+                            <f:else>
+                                <f:form.hidden name="permalogin" value="0" />
+                                <f:form.checkbox name="permalogin" id="permalogin" value="1" />
+                            </f:else>
+                        </f:if>
+                    </label>
+                </div>
+            </f:if>
+
+            <tr>
+                <td></td><td><f:form.submit value="{f:translate(key: 'login')}" name="submit"  class="pure-button" /></td>
+            </tr>
+            </table>
+
+            <div class="felogin-hidden">
+                <f:form.hidden name="logintype" value="login" />
+                <f:form.hidden name="pid" value="{storagePid}" />
+                <f:if condition="{redirectURL}!=''">
+                    <f:form.hidden name="redirect_url" value="{redirectURL}" />
+                </f:if>
+                <f:if condition="{referer}!=''">
+                    <f:form.hidden name="referer" value="{referer}" />
+                </f:if>
+                <f:if condition="{redirectReferrer}!=''">
+                    <f:form.hidden name="redirectReferrer" value="off" />
+                </f:if>
+                <f:if condition="{noRedirect}!=''">
+                    <f:form.hidden name="noredirect" value="1" />
+                </f:if>
+
+                {extraHidden}
+            </div>
+        </fieldset>
+    </f:section>
+</div>
+
+</html>

fileadmin/templates/PasswordRecovery/Recovery.html

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+<html xmlns:f="http://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers" data-namespace-typo3-fluid="true">
+<div class="pure-form">
+    <h3>
+        <f:translate key="forgot_header" />
+    </h3>
+    <p>
+        <f:translate key="forgot_reset_message" />
+    </p>
+
+    <f:render partial="ValidationErrors" />
+
+    <f:form action="recovery" method="post">
+        <fieldset>
+            <table class="pure-table  pure-table-striped"><tr>
+            <legend>
+                <f:render partial="RenderLabelOrMessage" arguments="{key: 'reset_password'}" />
+            </legend>
+            <tr>
+                <label>
+                    <td><f:translate key="enter_your_data" /></td>
+                    <td><f:form.textfield name="userIdentifier" /></td>
+                </label>
+            </tr>
+            <tr>
+                <td></td>
+                <td><f:form.submit value="{f:translate(key: 'reset_password')}" class="pure-button" /></td>
+            </tr>
+            </table>
+        </fieldset>
+    </f:form>
+
+    <p>
+        <f:link.action action="login" controller="Login">
+            <f:translate key="forgot_header_backToLogin" />
+        </f:link.action>
+    </p>
+</div>
+
+</html>

fileadmin/templates/gutachten.css

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+/*csslint important:false*/
+
+/* ==========================================================================
+   Pure Base Extras
+   ========================================================================== */
+
+/**
+ * Extra rules that Pure adds on top of Normalize.css
+ */
+
+html {
+    font-family: sans-serif;
+}
+
+/**
+ * Always hide an element when it has the `hidden` HTML attribute.
+ */
+
+.hidden,
+[hidden] {
+    display: none !important;
+}
+
+/**
+ * Add this class to an image to make it fit within it's fluid parent wrapper while maintaining
+ * aspect ratio.
+ */
+.pure-img {
+    max-width: 100%;
+    height: auto;
+    display: block;
+}
+
+.pure-button {
+    /* Structure */
+    display: inline-block;
+    line-height: normal;
+    white-space: nowrap;
+    vertical-align: middle;
+    text-align: center;
+    cursor: pointer;
+    -webkit-user-drag: none;
+    user-select: none;
+    box-sizing: border-box;
+}
+
+/* Firefox: Get rid of the inner focus border */
+.pure-button::-moz-focus-inner {
+    padding: 0;
+    border: 0;
+}
+
+/* Inherit .pure-g styles */
+.pure-button-group {
+    letter-spacing: -0.31em; /* Webkit: collapse white-space between units */
+    text-rendering: optimizespeed; /* Webkit: fixes text-rendering: optimizeLegibility */
+}
+
+.opera-only :-o-prefocus,
+.pure-button-group {
+    word-spacing: -0.43em;
+}
+
+.pure-button-group .pure-button {
+    letter-spacing: normal;
+    word-spacing: normal;
+    vertical-align: top;
+    text-rendering: auto;
+}
+/*csslint box-model:false*/
+/*
+Box-model set to false because we're setting a height on select elements, which
+also have border and padding. This is done because some browsers don't render
+the padding. We explicitly set the box-model for select elements to border-box,
+so we can ignore the csslint warning.
+*/
+
+.pure-form input[type="text"],
+.pure-form input[type="password"],
+.pure-form input[type="email"],
+.pure-form input[type="url"],
+.pure-form input[type="date"],
+.pure-form input[type="month"],
+.pure-form input[type="time"],
+.pure-form input[type="datetime"],
+.pure-form input[type="datetime-local"],
+.pure-form input[type="week"],
+.pure-form input[type="number"],
+.pure-form input[type="search"],
+.pure-form input[type="tel"],
+.pure-form input[type="color"],
+.pure-form select,
+.pure-form textarea {
+    padding: 0.5em 0.6em;
+    display: inline-block;
+    border: 1px solid #ccc;
+    box-shadow: inset 0 1px 3px #ddd;
+    border-radius: 4px;
+    vertical-align: middle;
+    box-sizing: border-box;
+}
+
+/*
+Need to separate out the :not() selector from the rest of the CSS 2.1 selectors
+since IE8 won't execute CSS that contains a CSS3 selector.
+*/
+.pure-form input:not([type]) {
+    padding: 0.5em 0.6em;
+    display: inline-block;
+    border: 1px solid #ccc;
+    box-shadow: inset 0 1px 3px #ddd;
+    border-radius: 4px;
+    box-sizing: border-box;
+}
+
+
+/* Chrome (as of v.32/34 on OS X) needs additional room for color to display. */
+/* May be able to remove this tweak as color inputs become more standardized across browsers. */
+.pure-form input[type="color"] {
+    padding: 0.2em 0.5em;
+}
+
+
+.pure-form input[type="text"]:focus,
+.pure-form input[type="password"]:focus,
+.pure-form input[type="email"]:focus,
+.pure-form input[type="url"]:focus,
+.pure-form input[type="date"]:focus,
+.pure-form input[type="month"]:focus,
+.pure-form input[type="time"]:focus,
+.pure-form input[type="datetime"]:focus,
+.pure-form input[type="datetime-local"]:focus,
+.pure-form input[type="week"]:focus,
+.pure-form input[type="number"]:focus,
+.pure-form input[type="search"]:focus,
+.pure-form input[type="tel"]:focus,
+.pure-form input[type="color"]:focus,
+.pure-form select:focus,
+.pure-form textarea:focus {
+    outline: 0;
+    border-color: #129FEA;
+}
+
+/*
+Need to separate out the :not() selector from the rest of the CSS 2.1 selectors
+since IE8 won't execute CSS that contains a CSS3 selector.
+*/
+.pure-form input:not([type]):focus {
+    outline: 0;
+    border-color: #129FEA;
+}
+
+.pure-form input[type="file"]:focus,
+.pure-form input[type="radio"]:focus,
+.pure-form input[type="checkbox"]:focus {
+    outline: thin solid #129FEA;
+    outline: 1px auto #129FEA;
+}
+.pure-form .pure-checkbox,
+.pure-form .pure-radio {
+    margin: 0.5em 0;
+    display: block;
+}
+
+.pure-form input[type="text"][disabled],
+.pure-form input[type="password"][disabled],
+.pure-form input[type="email"][disabled],
+.pure-form input[type="url"][disabled],
+.pure-form input[type="date"][disabled],
+.pure-form input[type="month"][disabled],
+.pure-form input[type="time"][disabled],
+.pure-form input[type="datetime"][disabled],
+.pure-form input[type="datetime-local"][disabled],
+.pure-form input[type="week"][disabled],
+.pure-form input[type="number"][disabled],
+.pure-form input[type="search"][disabled],
+.pure-form input[type="tel"][disabled],
+.pure-form input[type="color"][disabled],
+.pure-form select[disabled],
+.pure-form textarea[disabled] {
+    cursor: not-allowed;
+    background-color: #eaeded;
+    color: #cad2d3;
+}
+
+/*
+Need to separate out the :not() selector from the rest of the CSS 2.1 selectors
+since IE8 won't execute CSS that contains a CSS3 selector.
+*/
+.pure-form input:not([type])[disabled] {
+    cursor: not-allowed;
+    background-color: #eaeded;
+    color: #cad2d3;
+}
+.pure-form input[readonly],
+.pure-form select[readonly],
+.pure-form textarea[readonly] {
+    background-color: #eee; /* menu hover bg color */
+    color: #777; /* menu text color */
+    border-color: #ccc;
+}
+
+.pure-form input:focus:invalid,
+.pure-form textarea:focus:invalid,
+.pure-form select:focus:invalid {
+    color: #b94a48;
+    border-color: #e9322d;
+}
+.pure-form input[type="file"]:focus:invalid:focus,
+.pure-form input[type="radio"]:focus:invalid:focus,
+.pure-form input[type="checkbox"]:focus:invalid:focus {
+    outline-color: #e9322d;
+}
+.pure-form select {
+    /* Normalizes the height; padding is not sufficient. */
+    height: 2.25em;
+    border: 1px solid #ccc;
+    background-color: white;
+}
+.pure-form select[multiple] {
+    height: auto;
+}
+.pure-form label {
+    margin: 0.5em 0 0.2em;
+}
+.pure-form fieldset {
+    margin: 0;
+    padding: 0.35em 0 0.75em;
+    border: 0;
+}
+.pure-form legend {
+    display: block;
+    width: 100%;
+    padding: 0.3em 0;
+    margin-bottom: 0.3em;
+    color: #333;
+    border-bottom: 1px solid #e5e5e5;
+}
+
+.pure-form-stacked input[type="text"],
+.pure-form-stacked input[type="password"],
+.pure-form-stacked input[type="email"],
+.pure-form-stacked input[type="url"],
+.pure-form-stacked input[type="date"],
+.pure-form-stacked input[type="month"],
+.pure-form-stacked input[type="time"],
+.pure-form-stacked input[type="datetime"],
+.pure-form-stacked input[type="datetime-local"],
+.pure-form-stacked input[type="week"],
+.pure-form-stacked input[type="number"],
+.pure-form-stacked input[type="search"],
+.pure-form-stacked input[type="tel"],
+.pure-form-stacked input[type="color"],
+.pure-form-stacked input[type="file"],
+.pure-form-stacked select,
+.pure-form-stacked label,
+.pure-form-stacked textarea {
+    display: block;
+    margin: 0.25em 0;
+}
+
+/*
+Need to separate out the :not() selector from the rest of the CSS 2.1 selectors
+since IE8 won't execute CSS that contains a CSS3 selector.
+*/
+.pure-form-stacked input:not([type]) {
+    display: block;
+    margin: 0.25em 0;
+}
+.pure-form-aligned input,
+.pure-form-aligned textarea,
+.pure-form-aligned select,
+.pure-form-message-inline {
+    display: inline-block;
+    vertical-align: middle;
+}
+.pure-form-aligned textarea {
+    vertical-align: top;
+}
+
+/* Aligned Forms */
+.pure-form-aligned .pure-control-group {
+    margin-bottom: 0.5em;
+}
+.pure-form-aligned .pure-control-group label {
+    text-align: right;
+    display: inline-block;
+    vertical-align: middle;
+    width: 10em;
+    margin: 0 1em 0 0;
+}
+.pure-form-aligned .pure-controls {
+    margin: 1.5em 0 0 11em;
+}
+
+/* Rounded Inputs */
+.pure-form input.pure-input-rounded,
+.pure-form .pure-input-rounded {
+    border-radius: 2em;
+    padding: 0.5em 1em;
+}
+
+/* Grouped Inputs */
+.pure-form .pure-group fieldset {
+    margin-bottom: 10px;
+}
+.pure-form .pure-group input,
+.pure-form .pure-group textarea {
+    display: block;
+    padding: 10px;
+    margin: 0 0 -1px;
+    border-radius: 0;
+    position: relative;
+    top: -1px;
+}
+.pure-form .pure-group input:focus,
+.pure-form .pure-group textarea:focus {
+    z-index: 3;
+}
+.pure-form .pure-group input:first-child,
+.pure-form .pure-group textarea:first-child {
+    top: 1px;
+    border-radius: 4px 4px 0 0;
+    margin: 0;
+}
+.pure-form .pure-group input:first-child:last-child,
+.pure-form .pure-group textarea:first-child:last-child {
+    top: 1px;
+    border-radius: 4px;
+    margin: 0;
+}
+.pure-form .pure-group input:last-child,
+.pure-form .pure-group textarea:last-child {
+    top: -2px;
+    border-radius: 0 0 4px 4px;
+    margin: 0;
+}
+.pure-form .pure-group button {
+    margin: 0.35em 0;
+}
+
+.pure-form .pure-input-1 {
+    width: 100%;
+}
+.pure-form .pure-input-3-4 {
+    width: 75%;
+}
+.pure-form .pure-input-2-3 {
+    width: 66%;
+}
+.pure-form .pure-input-1-2 {
+    width: 50%;
+}
+.pure-form .pure-input-1-3 {
+    width: 33%;
+}
+.pure-form .pure-input-1-4 {
+    width: 25%;
+}
+
+/* Inline help for forms */
+.pure-form-message-inline {
+    display: inline-block;
+    padding-left: 0.3em;
+    color: #666;
+    vertical-align: middle;
+    font-size: 0.875em;
+}
+
+/* Block help for forms */
+.pure-form-message {
+    display: block;
+    color: #666;
+    font-size: 0.875em;
+}
+.pure-table {
+    /* Remove spacing between table cells (from Normalize.css) */
+    border-collapse: collapse;
+    border-spacing: 0;
+    empty-cells: show;
+    border: 1px solid #cbcbcb;
+}
+
+.pure-table caption {
+    color: #000;
+    font: italic 85%/1 arial, sans-serif;
+    padding: 1em 0;
+    text-align: center;
+}
+
+.pure-table td,
+.pure-table th {
+    border-left: 1px solid #cbcbcb;/*  inner column border */
+    border-width: 0 0 0 1px;
+    font-size: inherit;
+    margin: 0;
+    overflow: visible; /*to make ths where the title is really long work*/
+    padding: 0.5em 1em; /* cell padding */
+}
+
+.pure-table thead {
+    background-color: #e0e0e0;
+    color: #000;
+    text-align: left;
+    vertical-align: bottom;
+}
+
+/*
+striping:
+   even - #fff (white)
+   odd  - #f2f2f2 (light gray)
+*/
+.pure-table td {
+    background-color: transparent;
+}
+.pure-table-odd td {
+    background-color: #f2f2f2;
+}
+
+/* nth-child selector for modern browsers */
+.pure-table-striped tr:nth-child(2n-1) td {
+    background-color: #f2f2f2;
+}
+
+/* BORDERED TABLES */
+.pure-table-bordered td {
+    border-bottom: 1px solid #cbcbcb;
+}
+.pure-table-bordered tbody > tr:last-child > td {
+    border-bottom-width: 0;
+}
+
+
+/* HORIZONTAL BORDERED TABLES */
+
+.pure-table-horizontal td,
+.pure-table-horizontal th {
+    border-width: 0 0 1px 0;
+    border-bottom: 1px solid #cbcbcb;
+}
+.pure-table-horizontal tbody > tr:last-child > td {
+    border-bottom-width: 0;
+}
+
+/*csslint outline-none:false*/
+
+.pure-button {
+    font-family: inherit;
+    font-size: 100%;
+    padding: 0.5em 1em;
+    color: rgba(0, 0, 0, 0.80);
+    border: none rgba(0, 0, 0, 0);
+    background-color: #E6E6E6;
+    text-decoration: none;
+    border-radius: 2px;
+}
+
+.pure-button-hover,
+.pure-button:hover,
+.pure-button:focus {
+    background-image: linear-gradient(transparent, rgba(0,0,0, 0.05) 40%, rgba(0,0,0, 0.10));
+}
+.pure-button:focus {
+    outline: 0;
+}
+.pure-button-active,
+.pure-button:active {
+    box-shadow: 0 0 0 1px rgba(0,0,0, 0.15) inset, 0 0 6px rgba(0,0,0, 0.20) inset;
+    border-color: #000;
+}
+
+.pure-button[disabled],
+.pure-button-disabled,
+.pure-button-disabled:hover,
+.pure-button-disabled:focus,
+.pure-button-disabled:active {
+    border: none;
+    background-image: none;
+    opacity: 0.40;
+    cursor: not-allowed;
+    box-shadow: none;
+    pointer-events: none;
+}
+
+.pure-button-hidden {
+    display: none;
+}
+
+.pure-button-primary,
+.pure-button-selected,
+a.pure-button-primary,
+a.pure-button-selected {
+    background-color: rgb(0, 120, 231);
+    color: #fff;
+}
+
+/* Button Groups */
+.pure-button-group .pure-button {
+    margin: 0;
+    border-radius: 0;
+    border-right: 1px solid rgba(0, 0, 0, 0.2);
+
+}
+
+.pure-button-group .pure-button:first-child {
+    border-top-left-radius: 2px;
+    border-bottom-left-radius: 2px;
+}
+.pure-button-group .pure-button:last-child {
+    border-top-right-radius: 2px;
+    border-bottom-right-radius: 2px;
+    border-right: none;
+}

fileadmin/templates/pureOFF.css

@@ -0,0 +1,20 @@
+#nprogress{pointer-events:none}#nprogress .bar{background:#29d;position:fixed;z-index:1031;top:0;left:0;width:100%;height:2px}#nprogress .peg{display:block;position:absolute;right:0;width:100px;height:100%;box-shadow:0 0 10px #29d,0 0 5px #29d;opacity:1;-webkit-transform:rotate(3deg) translateY(-4px);transform:rotate(3deg) translateY(-4px)}#nprogress .spinner{display:block;position:fixed;z-index:1031;top:15px;right:15px}#nprogress .spinner-icon{width:18px;height:18px;box-sizing:border-box;border-color:#29d transparent transparent #29d;border-style:solid;border-width:2px;border-radius:50%;-webkit-animation:nprogress-spinner .4s linear infinite;animation:nprogress-spinner .4s linear infinite}.nprogress-custom-parent{overflow:hidden;position:relative}.nprogress-custom-parent #nprogress .bar,.nprogress-custom-parent #nprogress .spinner{position:absolute}@-webkit-keyframes nprogress-spinner{0%{-webkit-transform:rotate(0deg)}to{-webkit-transform:rotate(1turn)}}@keyframes nprogress-spinner{0%{-webkit-transform:rotate(0deg);transform:rotate(0deg)}to{-webkit-transform:rotate(1turn);transform:rotate(1turn)}}
+
+
+/*!
+Pure v2.0.3
+Copyright 2013 Yahoo!
+Licensed under the BSD License.
+https://github.com/pure-css/pure/blob/master/LICENSE
+*/
+/*!
+normalize.css v | MIT License | git.io/normalize
+Copyright (c) Nicolas Gallagher and Jonathan Neal
+*/
+/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}main{display:block}h1{font-size:2em;margin:.67em 0}hr{-webkit-box-sizing:content-box;box-sizing:content-box;height:0;overflow:visible}pre{font-family:monospace,monospace;font-size:1em}a{background-color:transparent}abbr[title]{border-bottom:none;text-decoration:underline;-webkit-text-decoration:underline dotted;text-decoration:underline dotted}b,strong{font-weight:bolder}code,kbd,samp{font-family:monospace,monospace;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}img{border-style:none}button,input,optgroup,select,textarea{font-family:inherit;font-size:100%;line-height:1.15;margin:0}button,input{overflow:visible}button,select{text-transform:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner,button::-moz-focus-inner{border-style:none;padding:0}[type=button]:-moz-focusring,[type=reset]:-moz-focusring,[type=submit]:-moz-focusring,button:-moz-focusring{outline:1px dotted ButtonText}fieldset{padding:.35em .75em .625em}legend{-webkit-box-sizing:border-box;box-sizing:border-box;color:inherit;display:table;max-width:100%;padding:0;white-space:normal}progress{vertical-align:baseline}textarea{overflow:auto}[type=checkbox],[type=radio]{-webkit-box-sizing:border-box;box-sizing:border-box;padding:0}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}details{display:block}summary{display:list-item}[hidden],template{display:none}html{font-family:sans-serif}.hidden,[hidden]{display:none!important}.pure-img{max-width:100%;height:auto;display:block}.pure-g{letter-spacing:-.31em;text-rendering:optimizespeed;font-family:FreeSans,Arimo,Droid Sans,Helvetica,Arial,sans-serif;display:-ms-flexbox;display:flex;-ms-flex-flow:row wrap;flex-flow:row wrap;-ms-flex-line-pack:start;align-content:flex-start}@media (-ms-high-contrast:active),(-ms-high-contrast:none){table .pure-g{display:block}}.opera-only :-o-prefocus,.pure-g{word-spacing:-.43em}.pure-u{display:inline-block;letter-spacing:normal;word-spacing:normal;vertical-align:top;text-rendering:auto}.pure-g [class*=pure-u]{font-family:sans-serif}.pure-u-1,.pure-u-1-1,.pure-u-1-2,.pure-u-1-3,.pure-u-1-4,.pure-u-1-5,.pure-u-1-6,.pure-u-1-8,.pure-u-1-12,.pure-u-1-24,.pure-u-2-3,.pure-u-2-5,.pure-u-2-24,.pure-u-3-4,.pure-u-3-5,.pure-u-3-8,.pure-u-3-24,.pure-u-4-5,.pure-u-4-24,.pure-u-5-5,.pure-u-5-6,.pure-u-5-8,.pure-u-5-12,.pure-u-5-24,.pure-u-6-24,.pure-u-7-8,.pure-u-7-12,.pure-u-7-24,.pure-u-8-24,.pure-u-9-24,.pure-u-10-24,.pure-u-11-12,.pure-u-11-24,.pure-u-12-24,.pure-u-13-24,.pure-u-14-24,.pure-u-15-24,.pure-u-16-24,.pure-u-17-24,.pure-u-18-24,.pure-u-19-24,.pure-u-20-24,.pure-u-21-24,.pure-u-22-24,.pure-u-23-24,.pure-u-24-24{display:inline-block;letter-spacing:normal;word-spacing:normal;vertical-align:top;text-rendering:auto}.pure-u-1-24{width:4.1667%}.pure-u-1-12,.pure-u-2-24{width:8.3333%}.pure-u-1-8,.pure-u-3-24{width:12.5%}.pure-u-1-6,.pure-u-4-24{width:16.6667%}.pure-u-1-5{width:20%}.pure-u-5-24{width:20.8333%}.pure-u-1-4,.pure-u-6-24{width:25%}.pure-u-7-24{width:29.1667%}.pure-u-1-3,.pure-u-8-24{width:33.3333%}.pure-u-3-8,.pure-u-9-24{width:37.5%}.pure-u-2-5{width:40%}.pure-u-5-12,.pure-u-10-24{width:41.6667%}.pure-u-11-24{width:45.8333%}.pure-u-1-2,.pure-u-12-24{width:50%}.pure-u-13-24{width:54.1667%}.pure-u-7-12,.pure-u-14-24{width:58.3333%}.pure-u-3-5{width:60%}.pure-u-5-8,.pure-u-15-24{width:62.5%}.pure-u-2-3,.pure-u-16-24{width:66.6667%}.pure-u-17-24{width:70.8333%}.pure-u-3-4,.pure-u-18-24{width:75%}.pure-u-19-24{width:79.1667%}.pure-u-4-5{width:80%}.pure-u-5-6,.pure-u-20-24{width:83.3333%}.pure-u-7-8,.pure-u-21-24{width:87.5%}.pure-u-11-12,.pure-u-22-24{width:91.6667%}.pure-u-23-24{width:95.8333%}.pure-u-1,.pure-u-1-1,.pure-u-5-5,.pure-u-24-24{width:100%}.pure-button{display:inline-block;line-height:normal;white-space:nowrap;vertical-align:middle;text-align:center;cursor:pointer;-webkit-user-drag:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;-webkit-box-sizing:border-box;box-sizing:border-box}.pure-button::-moz-focus-inner{padding:0;border:0}.pure-button-group{letter-spacing:-.31em;text-rendering:optimizespeed}.opera-only :-o-prefocus,.pure-button-group{word-spacing:-.43em}.pure-button-group .pure-button{letter-spacing:normal;word-spacing:normal;vertical-align:top;text-rendering:auto}.pure-button{font-size:100%;padding:.5em 1em;color:rgba(0,0,0,.8);border:transparent;background-color:#e6e6e6;text-decoration:none;border-radius:2px}.pure-butLine truncated
+/*!
+Pure v2.0.3
+Copyright 2013 Yahoo!
+Licensed under the BSD License.
+https://github.com/pure-css/pure/blob/master/LICENSE
+*/@media screen and (min-width:35.5em){.pure-u-sm-1,.pure-u-sm-1-1,.pure-u-sm-1-2,.pure-u-sm-1-3,.pure-u-sm-1-4,.pure-u-sm-1-5,.pure-u-sm-1-6,.pure-u-sm-1-8,.pure-u-sm-1-12,.pure-u-sm-1-24,.pure-u-sm-2-3,.pure-u-sm-2-5,.pure-u-sm-2-24,.pure-u-sm-3-4,.pure-u-sm-3-5,.pure-u-sm-3-8,.pure-u-sm-3-24,.pure-u-sm-4-5,.pure-u-sm-4-24,.pure-u-sm-5-5,.pure-u-sm-5-6,.pure-u-sm-5-8,.pure-u-sm-5-12,.pure-u-sm-5-24,.pure-u-sm-6-24,.pure-u-sm-7-8,.pure-u-sm-7-12,.pure-u-sm-7-24,.pure-u-sm-8-24,.pure-u-sm-9-24,.pure-u-sm-10-24,.pure-u-sm-11-12,.pure-u-sm-11-24,.pure-u-sm-12-24,.pure-u-sm-13-24,.pure-u-sm-14-24,.pure-u-sm-15-24,.pure-u-sm-16-24,.pure-u-sm-17-24,.pure-u-sm-18-24,.pure-u-sm-19-24,.pure-u-sm-20-24,.pure-u-sm-21-24,.pure-u-sm-22-24,.pure-u-sm-23-24,.pure-u-sm-24-24{display:inline-block;letter-spacing:normal;word-spacing:normal;vertical-align:top;text-rendering:auto}.pure-u-sm-1-24{width:4.1667%}.pure-u-sm-1-12,.pure-u-sm-2-24{width:8.3333%}.pure-u-sm-1-8,.pure-u-sm-3-24{width:12.5%}.pure-u-sm-1-6,.pure-u-sm-4-24{width:16.6667%}.pure-u-sm-1-5{width:20%}.pure-u-sm-5-24{width:20.8333%}.pure-u-sm-1-4,.pure-u-sm-6-24{width:25%}.pure-u-sm-7-24{width:29.1667%}.pure-u-sm-1-3,.pure-u-sm-8-24{width:33.3333%}.pure-u-sm-3-8,.pure-u-sm-9-24{width:37.5%}.pure-u-sm-2-5{width:40%}.pure-u-sm-5-12,.pure-u-sm-10-24{width:41.6667%}.pure-u-sm-11-24{width:45.8333%}.pure-u-sm-1-2,.pure-u-sm-12-24{width:50%}.pure-u-sm-13-24{width:54.1667%}.pure-u-sm-7-12,.pure-u-sm-14-24{width:58.3333%}.pure-u-sm-3-5{width:60%}.pure-u-sm-5-8,.pure-u-sm-15-24{width:62.5%}.pure-u-sm-2-3,.pure-u-sm-16-24{width:66.6667%}.pure-u-sm-17-24{width:70.8333%}.pure-u-sm-3-4,.pure-u-sm-18-24{width:75%}.pure-u-sm-19-24{width:79.1667%}.pure-u-sm-4-5{width:80%}.pure-u-sm-5-6,.pure-u-sm-20-24{width:83.3333%}.pure-u-sm-7-8,.pure-u-sm-21-24{width:87.5%}.pure-u-sm-11-12,.pure-u-sm-22-24{width:91.6667%}.pure-u-sm-23-24{width:95.8333%}.pure-u-sm-1,.pure-u-sm-1-1,.pure-u-sm-5-5,.pure-u-sm-24-24{width:100%}}@media screen and (min-width:48em){.pure-u-md-1,.pure-u-md-1-1,.pure-u-md-1-2,.pure-u-md-1-3,.pure-u-md-1-4,.pure-u-md-1-5,.pure-u-md-1-6,.pure-u-md-1-8,.pure-u-md-1-12,.pure-u-md-1-24,.pure-u-md-2-3,.pure-u-md-2-5,.pure-u-md-2-24,.pure-u-md-3-4,.pure-u-md-3-5,.pure-u-md-3-8,.pure-u-md-3-24,.pure-u-md-4-5,.pure-u-md-4-24,.pure-u-md-5-5,.pure-u-md-5-6,.pure-u-md-5-8,.pure-u-md-5-12,.pure-u-md-5-24,.pure-u-md-6-24,.pure-u-md-7-8,.pure-u-md-7-12,.pure-u-md-7-24,.pure-u-md-8-24,.pure-u-md-9-24,.pure-u-md-10-24,.pure-u-md-11-12,.pure-u-md-11-24,.pure-u-md-12-24,.pure-u-md-13-24,.pure-u-md-14-24,.pure-u-md-15-24,.pure-u-md-16-24,.pure-u-md-17-24,.pure-u-md-18-24,.pure-u-md-19-24,.pure-u-md-20-24,.pure-u-md-21-24,.pure-u-md-22-24,.pure-u-md-23-24,.pure-u-md-24-24{display:inline-block;letter-spacing:normal;word-spacing:normal;vertical-align:top;text-rendering:auto}.pure-u-md-1-24{width:4.1667%}.pure-u-md-1-12,.pure-u-md-2-24{width:8.3333%}.pure-u-md-1-8,.pure-u-md-3-24{width:12.5%}.pure-u-md-1-6,.pure-u-md-4-24{width:16.6667%}.pure-u-md-1-5{width:20%}.pure-u-md-5-24{width:20.8333%}.pure-u-md-1-4,.pure-u-md-6-24{width:25%}.pure-u-md-7-24{width:29.1667%}.pure-u-md-1-3,.pure-u-md-8-24{width:33.3333%}.pure-u-md-3-8,.pure-u-md-9-24{width:37.5%}.pure-u-md-2-5{width:40%}.pure-u-md-5-12,.pure-u-md-10-24{width:41.6667%}.pure-u-md-11-24{width:45.8333%}.pure-u-md-1-2,.pure-u-md-12-24{width:50%}.pure-u-md-13-24{width:54.1667%}.pure-u-md-7-12,.pure-u-md-14-24{width:58.3333%}.pure-u-md-3-5{width:60%}.pure-u-md-5-8,.pure-u-md-15-24{width:62.5%}.pure-u-md-2-3,.pure-u-md-16-24{width:66.6667%}.pure-u-md-17-24{width:70.8333%}.pure-u-md-3-4,.pure-u-md-18-24{width:75%}.pure-u-md-19-24{width:79.1667%}.pure-u-md-4-5{width:80%}.pure-u-md-5-6,.pure-u-md-20-24{width:83.3333%}.pure-u-md-7-8,.pure-u-md-21-24{width:87.5%}.pure-u-md-11-12,.pure-u-md-22-24{width:91.6667%}.pure-u-md-23-24{width:95.8333%}.pure-u-md-1,.pure-u-md-1-1,.pure-u-md-5-5,.pure-u-md-24-24{width:100%}}@media screen and (min-width:64em){.pure-u-lg-1,.pure-u-lg-1-1,.pure-u-lg-1-2,.pure-u-lg-1-3,.pure-u-lg-1-4,.pure-u-lg-1-5,.pure-u-lg-1-6,.pure-u-lg-1-8,.pure-u-lg-1-12,.pure-u-lg-1-24,.pure-u-lg-2-3,.pure-u-lg-2-5,.pure-u-lg-2-24,.pure-u-lg-3-4,.pure-u-lg-3-5,.pure-u-lg-3-8,.pure-u-lg-3-24,.pure-u-lg-4-5,.pure-u-lg-4-24,.pure-u-lg-5-5,.pure-u-lg-5-6,.pure-u-lg-5-8,.pure-u-lg-5-12,.pure-u-lg-5-24,.pure-u-lg-6-24,.pure-u-lg-7-8,.pure-u-lg-7-12,.pure-u-lg-7-24,.pure-u-lg-8-24,.pure-u-lg-9-24,.pure-u-lg-10-24,.pure-u-lg-11-12,.pure-u-lg-11-24,.pure-u-lg-12-24,.pure-u-lg-13-24,.pure-u-lg-14-24,.pure-u-lg-15-24,.pure-u-lg-16-24,.pure-u-lg-17-24,.pure-u-lg-18-24,.pure-u-lg-19-24,.pure-u-lg-20-24,.pure-u-lg-21-24,.pure-u-lg-22-24,.pure-u-lg-23-24,.pure-u-lg-24-24{display:inline-block;letter-spacing:normal;word-spacing:normal;vertical-align:top;text-rendering:auto}.pure-u-lg-1-24{width:4.1667%}.pure-u-lg-1-12,.pure-u-lg-2-24{width:8.3333%}.pure-u-lg-1-8,.pure-u-lg-3-24{width:12.5%}.pure-u-lg-1-6,.pure-u-lg-4-24{width:16.6667%}.pure-u-lg-1-5{width:20Line truncated

fileadmin/user_upload/_temp_/importexport/.htaccess

@@ -0,0 +1,15 @@
+# This file restricts access to the fileadmin/user_upload/_import_export_ directory. It is
+# meant to protect temporary files which could contain sensible
+# information. Please do not touch.
+
+# Apache < 2.3
+<IfModule !mod_authz_core.c>
+	Order allow,deny
+	Deny from all
+	Satisfy All
+</IfModule>
+
+# Apache ≥ 2.3
+<IfModule mod_authz_core.c>
+	Require all denied
+</IfModule>

fileadmin/user_upload/_temp_/importexport/index.html

@@ -0,0 +1,7 @@
+<!DOCTYPE html>
+<html>
+<head>
+	<title></title>
+	<meta http-equiv=Refresh Content="0; Url=/"/>
+</head>
+</html>

index.html

@@ -0,0 +1 @@
+halo

index.php

@@ -0,0 +1,25 @@
+<?php
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+// Exit early if php requirement is not satisfied.
+if (PHP_VERSION_ID < 70200) {
+    die('This version of TYPO3 CMS requires PHP 7.2 or above');
+}
+
+// Set up the application for the frontend
+call_user_func(function () {
+    $classLoader = require dirname(__DIR__).'/vendor/autoload.php';
+    \TYPO3\CMS\Core\Core\SystemEnvironmentBuilder::run(0, \TYPO3\CMS\Core\Core\SystemEnvironmentBuilder::REQUESTTYPE_FE);
+    \TYPO3\CMS\Core\Core\Bootstrap::init($classLoader)->get(\TYPO3\CMS\Frontend\Http\Application::class)->run();
+});

info.php

@@ -0,0 +1,3 @@
+<?php
+
+echo phpinfo();

typo3/index.php

@@ -0,0 +1,25 @@
+<?php
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+// Exit early if php requirement is not satisfied.
+if (PHP_VERSION_ID < 70200) {
+    die('This version of TYPO3 CMS requires PHP 7.2 or above');
+}
+
+// Set up the application for the backend
+call_user_func(function () {
+    $classLoader = require dirname(dirname(__DIR__)).'/vendor/autoload.php';
+    \TYPO3\CMS\Core\Core\SystemEnvironmentBuilder::run(1, \TYPO3\CMS\Core\Core\SystemEnvironmentBuilder::REQUESTTYPE_BE);
+    \TYPO3\CMS\Core\Core\Bootstrap::init($classLoader)->get(\TYPO3\CMS\Backend\Http\Application::class)->run();
+});

typo3/install.php

@@ -0,0 +1,105 @@
+<?php
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+/**
+ * Entry point to the install tool and step installer.
+ *
+ * There are two main controllers: "step" and "tool".
+ * The step controller is always called first, and redirects to the tool controller
+ * if the basic core functionality is given (instance configuration exists, database
+ * connection works, ...)
+ * The tool controller is the main "install tool" with all the main functionality.
+ *
+ * The step controller handles the basic installation.
+ * During first installation it creates the basic file and folder structure, the
+ * configuration files, the database connection and a basic configuration. Those steps
+ * are cycled through and if some step returns TRUE on "needsExecution", an input
+ * form of this step is rendered.
+ * After initial installation, the step installer is still called if the install
+ * tool is accessed, so it will automatically come up if some basic configuration fails.
+ * If everything is ok, the step installer will redirect to the main install tool.
+ * The step installer also has some "silent" update scripts, for example it migrates
+ * a localconf.php to LocalConfiguration if needed.
+ *
+ * This ensures as soon as the tool controller is called, the basic configuration is ok.
+ *
+ * Whenever the bootstrap or other core elements figure the installation
+ * needs an update that is handled within the step controller, it should just
+ * redirect to the entry script and let the step controller do necessary work.
+ *
+ * The step installer initiates browser redirects if steps were executed. This simplifies
+ * internal logic by separating the different bootstrap states needed during installation
+ * from each other.
+ *
+ * There is also a backend module controller, that basically only shows a screen
+ * with the "enable install tool" button and then redirects to the entry script. Other
+ * than that, it does not interfere with step or tool controller and just sets a
+ * context GET parameter to indicate that the install tool is called within backend context.
+ *
+ * To coordinate different tasks within step and install controller and actions, several
+ * GET or POST parameters are used, all prefixed with "install".
+ * Parameters allowed as GET and POST are preserved during redirects, POST parameters are
+ * thrown away between redirects (HTTP status code 303).
+ *
+ * The following main GET and POST parameters are used:
+ * - GET/POST "install[context]" Preserved
+ *   Either empty, 'standalone' or 'backend', fallback to 'standalone'. Set to 'backend'
+ *   if install tool is called form the backend main module (BackendModuleController). This
+ *   changes the view a bit and shows the doc header in the install tool, changes background
+ *   color and such.
+ *
+ * - GET/POST "install[controller]" Preserved
+ *   Either empty, 'step' or 'tool', fallback to 'step'. This coordinates whether the step
+ *   or tool controller is called. This parameter is never set externally, so the step
+ *   controller is always called first. It itself sets the type to 'tool' and redirects to
+ *   the tool controller if needed.
+ *   This means you could (but shouldn't) directly call the tool controller, but it
+ *   will still require a login and session, then.
+ *
+ * - GET/POST "install[action]" Preserved
+ *   Determine step and tool controller main action sanitized by step / tool controller and
+ *   only executed if user is logged in. Form protection API relies on this.
+ *
+ * - GET/POST "install[redirectCount]"
+ *   The install tool initiates redirects to itself if configuration parameters were changed.
+ *   This may lead to infinite redirect loops under rare circumstances. This parameter is
+ *   incremented for each redirect to break a loop after some iterations.
+ *
+ * - POST "install[set]"
+ *   Contains keys to determine which sub-action of the action is requested,
+ *   eg. "change install tool password" in "important actions". Set to 'execute' if some
+ *   step should be executed.
+ *
+ * - POST "install[values]"
+ *   Data values for a specific "install[set]" action
+ *
+ * - POST "install[token]"
+ *   A session and instance specific token created from the instance specific
+ *   encryptionKey (taken care of in an early point in the step controller). This hash
+ *   is used as form protection against CSRF for all POST data. Both the step and tool
+ *   controller will logout a user if the token check fails. The only exception to this
+ *   handling is the very first installation step where no session and no encryption key
+ *   can exist yet.
+ */
+
+// Exit early if php requirement is not satisfied.
+if (PHP_VERSION_ID < 70200) {
+    die('This version of TYPO3 CMS requires PHP 7.2 or above');
+}
+
+call_user_func(function () {
+    $classLoader = require dirname(dirname(__DIR__)).'/vendor/autoload.php';
+    \TYPO3\CMS\Core\Core\SystemEnvironmentBuilder::run(1, \TYPO3\CMS\Core\Core\SystemEnvironmentBuilder::REQUESTTYPE_INSTALL);
+    \TYPO3\CMS\Core\Core\Bootstrap::init($classLoader, true)->get(\TYPO3\CMS\Install\Http\Application::class)->run();
+});

typo3/sysext/about/Classes/Controller/AboutController.php

@@ -0,0 +1,169 @@
+<?php
+namespace TYPO3\CMS\About\Controller;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ResponseInterface;
+use TYPO3\CMS\Backend\Module\ModuleLoader;
+use TYPO3\CMS\Backend\Template\ModuleTemplate;
+use TYPO3\CMS\Backend\Utility\BackendUtility;
+use TYPO3\CMS\Core\Http\HtmlResponse;
+use TYPO3\CMS\Core\Package\PackageManager;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Fluid\View\StandaloneView;
+use TYPO3Fluid\Fluid\View\ViewInterface;
+
+/**
+ * Module 'about' shows some standard information for TYPO3 CMS:
+ * About-text, version number, available modules and so on.
+ *
+ * @internal This is a specific Backend Controller implementation and is not considered part of the Public TYPO3 API.
+ */
+class AboutController
+{
+    /**
+     * ModuleTemplate object
+     *
+     * @var ModuleTemplate
+     */
+    protected $moduleTemplate;
+
+    /**
+     * @var ViewInterface
+     */
+    protected $view;
+
+    /**
+     * Main action: Show standard information
+     *
+     * @return ResponseInterface the HTML output
+     */
+    public function indexAction(): ResponseInterface
+    {
+        $this->moduleTemplate = GeneralUtility::makeInstance(ModuleTemplate::class);
+        $this->initializeView('index');
+        $warnings = [];
+        // Hook for additional warnings
+        foreach ($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_befunc.php']['displayWarningMessages'] ?? [] as $className) {
+            $hookObj = GeneralUtility::makeInstance($className);
+            if (method_exists($hookObj, 'displayWarningMessages_postProcess')) {
+                $hookObj->displayWarningMessages_postProcess($warnings);
+            }
+        }
+
+        $this->view->assignMultiple([
+            'copyrightYear' => TYPO3_copyright_year,
+            'donationUrl' => TYPO3_URL_DONATE,
+            'currentVersion' => TYPO3_version,
+            'loadedExtensions' => $this->getLoadedExtensions(),
+            'copyRightNotice' => BackendUtility::TYPO3_copyRightNotice(),
+            'warnings' => $warnings,
+            'modules' => $this->getModulesData()
+        ]);
+
+        $this->moduleTemplate->setContent($this->view->render());
+        return new HtmlResponse($this->moduleTemplate->renderContent());
+    }
+
+    /**
+     * Create array with data of all main modules (Web, File, ...)
+     * and its nested sub modules
+     *
+     * @return array
+     */
+    protected function getModulesData(): array
+    {
+        $loadedModules = GeneralUtility::makeInstance(ModuleLoader::class);
+        $loadedModules->observeWorkspaces = true;
+        $loadedModules->load($GLOBALS['TBE_MODULES']);
+        $mainModulesData = [];
+        foreach ($loadedModules->modules as $moduleName => $moduleInfo) {
+            $moduleLabels = $loadedModules->getLabelsForModule($moduleName);
+            $mainModuleData = [
+                'name'  => $moduleName,
+                'label' => $moduleLabels['title']
+            ];
+            if (is_array($moduleInfo['sub']) && !empty($moduleInfo['sub'])) {
+                $mainModuleData['subModules'] = $this->getSubModuleData($loadedModules, $moduleName);
+            }
+            $mainModulesData[] = $mainModuleData;
+        }
+        return $mainModulesData;
+    }
+
+    /**
+     * Create array with data of all subModules of a specific main module
+     *
+     * @param ModuleLoader $loadedModules the module loader instance
+     * @param string $moduleName Name of the main module
+     * @return array
+     */
+    protected function getSubModuleData(ModuleLoader $loadedModules, $moduleName): array
+    {
+        if (empty($loadedModules->modules[$moduleName]['sub'])) {
+            return [];
+        }
+
+        $subModulesData = [];
+        foreach ($loadedModules->modules[$moduleName]['sub'] as $subModuleName => $subModuleInfo) {
+            $moduleLabels = $loadedModules->getLabelsForModule($moduleName . '_' . $subModuleName);
+            $subModuleData = [];
+            $subModuleData['name'] = $subModuleName;
+            $subModuleData['icon'] = $subModuleInfo['icon'] ?? null;
+            $subModuleData['iconIdentifier'] = $subModuleInfo['iconIdentifier'] ?? null;
+            $subModuleData['label'] = $moduleLabels['title'] ?? null;
+            $subModuleData['shortDescription'] = $moduleLabels['shortdescription'] ?? null;
+            $subModuleData['longDescription'] = $moduleLabels['description'] ?? null;
+            $subModulesData[] = $subModuleData;
+        }
+        return $subModulesData;
+    }
+
+    /**
+     * Fetches a list of all active (loaded) extensions in the current system
+     *
+     * @return array
+     */
+    protected function getLoadedExtensions(): array
+    {
+        $extensions = [];
+        $packageManager = GeneralUtility::makeInstance(PackageManager::class);
+        foreach ($packageManager->getActivePackages() as $package) {
+            // Skip system extensions (= type: typo3-cms-framework)
+            if ($package->getValueFromComposerManifest('type') !== 'typo3-cms-extension') {
+                continue;
+            }
+            $extensions[] = [
+                'key' => $package->getPackageKey(),
+                'title' => $package->getPackageMetaData()->getDescription(),
+                'authors' => $package->getValueFromComposerManifest('authors')
+            ];
+        }
+        return $extensions;
+    }
+
+    /**
+     * Initializes the view by setting the templateName
+     *
+     * @param string $templateName
+     */
+    protected function initializeView(string $templateName)
+    {
+        $this->view = GeneralUtility::makeInstance(StandaloneView::class);
+        $this->view->setTemplate($templateName);
+        $this->view->setTemplateRootPaths(['EXT:about/Resources/Private/Templates/About']);
+        $this->view->setPartialRootPaths(['EXT:about/Resources/Private/Partials']);
+        $this->view->setLayoutRootPaths(['EXT:about/Resources/Private/Layouts']);
+    }
+}

typo3/sysext/about/LICENSE.txt

@@ -0,0 +1,345 @@
+Some icons used in the TYPO3 project are retrieved from the "Silk" icon set of
+Mark James, which can be found at http://famfamfam.com/lab/icons/silk/. This
+set is distributed under a Creative Commons Attribution 2.5 License. The
+license can be found at http://creativecommons.org/licenses/by/2.5/.
+---------------------------------
+
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+                            NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.

typo3/sysext/about/Resources/Private/Language/Modules/about.xlf

@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xliff version="1.0" xmlns:t3="http://typo3.org/schemas/xliff">
+	<file t3:id="1415814871" source-language="en" datatype="plaintext" original="EXT:about/Resources/Private/Language/Modules/about.xlf" date="2011-10-17T20:22:34Z" product-name="typo3-cms-about">
+		<header/>
+		<body>
+			<trans-unit id="mlang_labels_tablabel" resname="mlang_labels_tablabel">
+				<source>About TYPO3 CMS</source>
+			</trans-unit>
+			<trans-unit id="mlang_labels_tabdescr" resname="mlang_labels_tabdescr">
+				<source>Displays the basic facts about the TYPO3 application, version and licensing terms.</source>
+			</trans-unit>
+			<trans-unit id="mlang_tabs_tab" resname="mlang_tabs_tab">
+				<source>About TYPO3 CMS</source>
+			</trans-unit>
+			<trans-unit id="title" resname="title">
+				<source>About TYPO3 CMS</source>
+			</trans-unit>
+			<trans-unit id="typo3_logo" resname="typo3_logo">
+				<source>TYPO3 CMS logo</source>
+			</trans-unit>
+			<trans-unit id="information" resname="information">
+				<source>TYPO3 Information</source>
+			</trans-unit>
+			<trans-unit id="welcome" resname="welcome">
+				<source>TYPO3 CMS - Professional Web Content Management System</source>
+			</trans-unit>
+			<trans-unit id="minor" resname="minor">
+				<source>TYPO3 CMS is an enterprise-class, Open Source Content Management System, used internationally to build and manage websites of all types, from small sites for non-profits to multilingual enterprise solutions for large corporations.&lt;br /&gt;&lt;br /&gt;For further information visit &lt;a href="https://typo3.org/typo3-cms/" target="_blank" rel="noopener noreferrer"&gt;typo3.org&lt;/a&gt;.&lt;br /&gt;&lt;br /&gt;TYPO3 CMS is &lt;b&gt;freely available&lt;/b&gt; under the &lt;a href="https://typo3.org/project/licenses/" target="_blank"&gt;TYPO3-license (GNU/GPL)&lt;/a&gt;.&lt;br /&gt;&lt;br /&gt;You are using %s %s</source>
+			</trans-unit>
+			<trans-unit id="cms_description" resname="cms_description">
+				<source>TYPO3 CMS is an enterprise-class, Open Source Content Management System, used internationally to build and manage websites of all types, from small sites for non-profits to multilingual enterprise solutions for large corporations.&lt;br /&gt;&lt;br /&gt;For further information visit &lt;a href="https://typo3.org/typo3-cms/" target="_blank" rel="noopener noreferrer"&gt;typo3.org&lt;/a&gt;.&lt;br /&gt;&lt;br /&gt;TYPO3 CMS is &lt;b&gt;freely available&lt;/b&gt; under the &lt;a href="https://typo3.org/project/licenses/" target="_blank"&gt;TYPO3-license (GNU/GPL)&lt;/a&gt;.&lt;br /&gt;&lt;br /&gt;You are using version %s - Copyright %s %s</source>
+			</trans-unit>
+			<trans-unit id="community_credits" resname="community_credits">
+				<source>Community Credits</source>
+			</trans-unit>
+			<trans-unit id="information_detail" resname="information_detail">
+				<source>Visit &lt;a href="https://typo3.org/community/" target="_blank" rel="noopener noreferrer"&gt;typo3.org/community/&lt;/a&gt; if you want to know why TYPO3 rocks.</source>
+			</trans-unit>
+			<trans-unit id="coredevs" resname="coredevs">
+				<source>Core Team</source>
+			</trans-unit>
+			<trans-unit id="coredevs_detail" resname="coredevs_detail">
+				<source>Visit &lt;a href="https://typo3.org/teams-committees/core-development/" target="_blank" rel="noopener noreferrer"&gt;typo3.org/teams-committees/core-development/&lt;/a&gt; for the complete member list.&lt;br /&gt;&lt;br /&gt;The Git Repository and the ChangeLog can be found &lt;a href="https://forge.typo3.org/projects/typo3cms-core/" target="_blank"&gt;here&lt;/a&gt;.</source>
+			</trans-unit>
+			<trans-unit id="extension_authors" resname="extension_authors">
+				<source>Extension Authors</source>
+			</trans-unit>
+			<trans-unit id="extension_list_info" resname="extension_list_info">
+				<source>This is a list of the people who contributed to the extensions you're using in your installation.</source>
+			</trans-unit>
+			<trans-unit id="extension" resname="extension">
+				<source>Extension</source>
+			</trans-unit>
+			<trans-unit id="extension_author" resname="extension_author">
+				<source>Author</source>
+			</trans-unit>
+			<trans-unit id="donation_header" resname="donation_header">
+				<source>TYPO3 Donation</source>
+			</trans-unit>
+			<trans-unit id="donation_message" resname="donation_message">
+				<source>It would be great if you could donate. TYPO3 CMS is Open Source and relies heavily on donations from its users and supporters.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Thank you&lt;/b&gt; for making this great Content Management System even better with your support!</source>
+			</trans-unit>
+			<trans-unit id="donation_button" resname="donation_button">
+				<source>Donate now</source>
+			</trans-unit>
+			<trans-unit id="external_libraries" resname="external_libraries">
+				<source>External Libraries</source>
+			</trans-unit>
+			<trans-unit id="external_thanks" resname="external_thanks">
+				<source>TYPO3 CMS core uses and thanks these external Open Source projects:</source>
+			</trans-unit>
+		</body>
+	</file>
+</xliff>

typo3/sysext/about/Resources/Private/Language/Modules/locallang_alt_intro.xlf

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xliff version="1.0" xmlns:t3="http://typo3.org/schemas/xliff">
+	<file t3:id="1415814848" source-language="en" datatype="plaintext" original="EXT:about/Resources/Private/Language/Modules/locallang_alt_intro.xlf" date="2011-10-17T20:22:33Z" product-name="lang">
+		<header/>
+		<body>
+			<trans-unit id="introtext" resname="introtext">
+				<source>Web Content Management System</source>
+			</trans-unit>
+			<trans-unit id="introtext2" resname="introtext2">
+				<source>This is a brief description of the available modules.</source>
+			</trans-unit>
+			<trans-unit id="endText" resname="endText">
+				<source>Features may vary depending on your website and permissions</source>
+			</trans-unit>
+			<trans-unit id="userInfo" resname="userInfo">
+				<source>You're logged in as user</source>
+			</trans-unit>
+		</body>
+	</file>
+</xliff>

typo3/sysext/about/Resources/Private/Partials/About.html

@@ -0,0 +1,8 @@
+<p>
+	{f:translate(key: 'LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:cms_description',
+		arguments: '{
+			0: currentVersion,
+			1: "&copy; {copyrightYear}",
+			2: "Kasper Sk&aring;rh&oslash;j"
+	}') -> f:format.raw()}
+</p>

typo3/sysext/about/Resources/Private/Partials/CoreTeam.html

@@ -0,0 +1,10 @@
+<div class="panel panel-default">
+	<div class="panel-body panel-body-highlightlinks">
+		<h2 class="h4">
+			<f:translate key="LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:coredevs" />
+		</h2>
+		<p>
+			{f:translate(key: 'LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:coredevs_detail') -> f:format.raw()}
+		</p>
+	</div>
+</div>

typo3/sysext/about/Resources/Private/Partials/Credits.html

@@ -0,0 +1,10 @@
+<div class="panel panel-default">
+	<div class="panel-body panel-body-highlightlinks">
+		<h2 class="h4">
+			{f:translate(key: 'LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:community_credits') -> f:format.raw()}
+		</h2>
+		<p>
+			{f:translate(key: 'LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:information_detail') -> f:format.raw()}
+		</p>
+	</div>
+</div>

typo3/sysext/about/Resources/Private/Partials/Donation.html

@@ -0,0 +1,13 @@
+<div class="panel panel-default">
+	<div class="panel-body panel-body-highlightlinks">
+		<h2 class="h4">
+			<f:translate key="LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:donation_header" />
+		</h2>
+		<p>
+			{f:translate(key: 'LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:donation_message') -> f:format.raw()}
+		</p>
+		<a href="{donationUrl}" class="btn btn-default" title="{f:translate(key:'LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:donation_button')}" target="_blank" rel="noopener noreferrer">
+			<f:translate key="LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:donation_button" />
+		</a>
+	</div>
+</div>

typo3/sysext/about/Resources/Private/Partials/Extensions.html

@@ -0,0 +1,48 @@
+<f:if condition="{loadedExtensions}">
+	<div class="panel panel-default">
+		<div class="panel-body panel-body-highlightlinks">
+			<h2 class="h3">
+				<f:translate key="LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:extension_authors" />
+			</h2>
+			<p>
+				<f:translate key="LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:extension_list_info" />
+			</p>
+		</div>
+		<table class="table panel-table">
+			<thead>
+				<tr>
+					<th width="60%"><f:translate key="LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:extension" /></th>
+					<th><f:translate key="LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:extension_author" /></th>
+				</tr>
+			</thead>
+			<tbody>
+				<f:for each="{loadedExtensions}" as="loadedExtension">
+					<tr>
+						<td>
+							{loadedExtension.title} ({loadedExtension.key})
+						</td>
+						<td>
+							<f:for each="{loadedExtension.authors}" as="extensionAuthor" iteration="i">
+								<f:if condition="{extensionAuthor.email}">
+									<f:then>
+										<f:link.email
+											email="{extensionAuthor.email}?subject={f:format.urlencode(value:'Thanks for your {loadedExtension.title} extension')}"
+										>
+											{extensionAuthor.name}
+										</f:link.email>
+									</f:then>
+									<f:else>
+										{extensionAuthor.name}
+									</f:else>
+								</f:if>
+								<f:if condition="{i.isLast} == false">
+									<br>
+								</f:if>
+							</f:for>
+						</td>
+					</tr>
+				</f:for>
+			</tbody>
+		</table>
+	</div>
+</f:if>

typo3/sysext/about/Resources/Private/Partials/ExternalLibraries.html

@@ -0,0 +1,116 @@
+<div class="panel panel-default">
+	<div class="panel-body panel-body-highlightlinks">
+		<h2 class="h3">
+			<f:translate key="LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:external_libraries" />
+		</h2>
+		<p>
+			<f:translate key="LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:external_thanks" />
+		</p>
+	</div>
+	<table class="table panel-table">
+		<tr>
+			<td>Composer</td>
+			<td><a href="https://getcomposer.org" target="_blank" rel="noopener noreferrer">getcomposer.org</a></td>
+		</tr>
+		<tr>
+			<td>jQuery</td>
+			<td><a href="https://jquery.com" target="_blank" rel="noopener noreferrer">jquery.com</a></td>
+		</tr>
+		<tr>
+			<td>Twitter Bootstrap</td>
+			<td><a href="https://getbootstrap.com" target="_blank" rel="noopener noreferrer">getbootstrap.com</a></td>
+		</tr>
+		<tr>
+			<td>Swift Mailer</td>
+			<td><a href="https://swiftmailer.org" target="_blank" rel="noopener noreferrer">swiftmailer.org</a></td>
+		</tr>
+		<tr>
+			<td>Doctrine Project (DBAL Component and Instantiator)</td>
+			<td><a href="https://www.doctrine-project.org/projects/dbal.html" target="_blank" rel="noopener noreferrer">doctrine-project.org</a></td>
+		</tr>
+		<tr>
+			<td>Symfony Framework (YAML, Console and Finder Component)</td>
+			<td><a href="https://symfony.com" target="_blank" rel="noopener noreferrer">symfony.com</a></td>
+		</tr>
+		<tr>
+			<td>Guzzle PHP</td>
+			<td><a href="http://guzzlephp.org" target="_blank" rel="noopener noreferrer">guzzlephp.org</a></td>
+		</tr>
+		<tr>
+			<td>d3 Data Driven Documents</td>
+			<td><a href="https://d3js.org" target="_blank" rel="noopener noreferrer">d3js.org</a></td>
+		</tr>
+		<tr>
+			<td>CKEditor</td>
+			<td><a href="https://ckeditor.com" target="_blank" rel="noopener noreferrer">ckeditor.com</a></td>
+		</tr>
+		<tr>
+			<td>RequireJS</td>
+			<td><a href="https://requirejs.org" target="_blank" rel="noopener noreferrer">requirejs.org</a></td>
+		</tr>
+		<tr>
+			<td>moment.js</td>
+			<td><a href="https://momentjs.com" target="_blank" rel="noopener noreferrer">momentjs.com</a></td>
+		</tr>
+		<tr>
+			<td>NProgress</td>
+			<td><a href="https://ricostacruz.com/nprogress/" target="_blank" rel="noopener noreferrer">ricostacruz.com</a></td>
+		</tr>
+		<tr>
+			<td>jQuery UI</td>
+			<td><a href="https://jqueryui.com" target="_blank" rel="noopener noreferrer">jqueryui.com</a></td>
+		</tr>
+		<tr>
+			<td>Twitter Bootstrap Plugin: DateTimePicker</td>
+			<td><a href="https://eonasdan.github.io/bootstrap-datetimepicker/" target="_blank" rel="noopener noreferrer">eonasdan.github.io</a></td>
+		</tr>
+		<tr>
+			<td>Twitter Bootstrap Plugin: Slider</td>
+			<td><a href="https://seiyria.com/bootstrap-slider/" target="_blank" rel="noopener noreferrer">seiyria.com</a></td>
+		</tr>
+		<tr>
+			<td>jQuery Plugin: Ajax AutoComplete</td>
+			<td><a href="https://www.devbridge.com/sourcery/components/jquery-autocomplete/" target="_blank" rel="noopener noreferrer">devbridge.com</a></td>
+		</tr>
+		<tr>
+			<td>jQuery Plugin: Autosize</td>
+			<td><a href="https://www.jacklmoore.com/autosize/" target="_blank" rel="noopener noreferrer">jacklmoore.com</a></td>
+		</tr>
+		<tr>
+			<td>jQuery Plugin: Cropper</td>
+			<td><a href="https://fengyuanchen.github.io/cropper/" target="_blank" rel="noopener noreferrer">fengyuanchen.github.io</a></td>
+		</tr>
+		<tr>
+			<td>jQuery Plugin: DataTables</td>
+			<td><a href="https://datatables.net" target="_blank" rel="noopener noreferrer">datatables.net</a></td>
+		</tr>
+		<tr>
+			<td>jQuery Plugin: ImagesLoaded</td>
+			<td><a href="https://imagesloaded.desandro.com" target="_blank" rel="noopener noreferrer">imagesloaded.desandro.com</a></td>
+		</tr>
+		<tr>
+			<td>jQuery Plugin: MiniColors</td>
+			<td><a href="https://labs.abeautifulsite.net/jquery-minicolors/" target="_blank" rel="noopener noreferrer">labs.abeautifulsite.net</a></td>
+		</tr>
+		<tr>
+			<td>jQuery Plugin: Tab Override</td>
+			<td><a href="https://wjbryant.github.io/taboverride/" target="_blank" rel="noopener noreferrer">wjbryant.github.io</a></td>
+		</tr>
+		<tr>
+			<td>Neos (Form component)</td>
+			<td><a href="https://www.neos.io" target="_blank" rel="noopener noreferrer">neos.io</a></td>
+		</tr>
+		<tr>
+			<td>FineDiff</td>
+			<td><a href="https://github.com/cogpowered/FineDiff" target="_blank" rel="noopener noreferrer">github.com</a></td>
+		</tr>
+		<tr>
+			<td>IDNA Convert</td>
+			<td><a href="https://idnaconv.net" target="_blank" rel="noopener noreferrer">idnaconv.net</a></td>
+		</tr>
+		<tr>
+			<td>CodeMirror</td>
+			<td><a href="https://codemirror.net" target="_blank" rel="noopener noreferrer">codemirror.net</a></td>
+		</tr>
+	</table>
+</div>

typo3/sysext/about/Resources/Private/Partials/Logo.html

@@ -0,0 +1,8 @@
+<img src="{f:uri.resource(path: 'Images/typo3_orange.svg', extensionName: 'backend')}" width="150"
+	alt="{f:translate(key:'LLL:EXT:about/Resources/Private/Language/Modules/about.xlf:typo3_logo')}" />
+<br>
+<br>
+<h1>
+	TYPO3 CMS {currentVersion}<br>
+	<f:translate key="LLL:EXT:about/Resources/Private/Language/Modules/locallang_alt_intro.xlf:introtext" />
+</h1>

typo3/sysext/about/Resources/Private/Partials/Modules.html

@@ -0,0 +1,43 @@
+<p>
+	<f:translate key="LLL:EXT:about/Resources/Private/Language/Modules/locallang_alt_intro.xlf:introtext2" />
+</p>
+<f:for each="{modules}" as="mainModule">
+	<f:if condition="{mainModule.subModules}">
+		<f:if condition="{mainModule.label}">
+			<h2>{f:translate(key: mainModule.label)}</h2>
+		</f:if>
+		<section class="card-container">
+			<f:for each="{mainModule.subModules}" as="subModule" iteration="subModuleIterator">
+				<a
+					href="#"
+					onclick="top.goToModule('{mainModule.name}_{subModule.name}'); return false;"
+					title="{f:if(condition: subModule.shortDescription, then: '{f:translate(key: subModule.shortDescription)}')}"
+					class="card card-size-medium"
+				>
+					<div class="card-header">
+						<div class="card-icon">
+							<core:icon identifier="{subModule.iconIdentifier}" size="default" />
+						</div>
+						<f:if condition="{subModule.label}">
+							<div class="card-header-body">
+								<h3 class="card-title">
+									{f:translate(key: subModule.label)}
+								</h3>
+								<f:if condition="{subModule.shortDescription}">
+									<span class="card-subtitle">
+										<f:translate key="{subModule.shortDescription}" />
+									</span>
+								</f:if>
+								<f:if condition="{subModule.longDescription}">
+									<div class="card-longdesc">
+										{f:translate(key: subModule.longDescription) -> f:format.raw()}
+									</div>
+								</f:if>
+							</div>
+						</f:if>
+					</div>
+				</a>
+			</f:for>
+		</section>
+	</f:if>
+</f:for>

typo3/sysext/about/Resources/Private/Templates/About/Index.html

@@ -0,0 +1,39 @@
+<div class="container-small about-module">
+	<f:render partial="Logo" arguments="{_all}" />
+
+	<f:if condition="{warnings}">
+		<f:be.infobox title="{f:translate(key: 'LLL:EXT:core/Resources/Private/Language/locallang_core.xlf:warning.header')}" state="2">
+			<f:if condition="{f:count(subject: warnings)} > 1">
+				<f:then>
+					<ul>
+						<f:for each="{warnings}" as="warning">
+							<li>{warning -> f:format.raw()}</li>
+						</f:for>
+					</ul>
+				</f:then>
+				<f:else>
+					<p>
+						<f:for each="{warnings}" as="warning">
+							{warning -> f:format.raw()}
+						</f:for>
+					</p>
+				</f:else>
+			</f:if>
+		</f:be.infobox>
+	</f:if>
+
+	<f:render partial="About" arguments="{_all}" />
+	<f:render partial="Modules" arguments="{_all}" />
+	<f:render partial="Donation" arguments="{_all}" />
+	<f:render partial="Credits" arguments="{_all}" />
+	<f:render partial="CoreTeam" arguments="{_all}" />
+	<f:render partial="ExternalLibraries" arguments="{_all}" />
+	<f:render partial="Extensions" arguments="{_all}" />
+
+	<p>
+		<em class="text-muted">
+			<f:translate key="LLL:EXT:about/Resources/Private/Language/Modules/locallang_alt_intro.xlf:endText" />
+		</em>
+	</p>
+	<p>{copyRightNotice -> f:format.raw()}</p>
+</div>

typo3/sysext/about/Resources/Public/Icons/module-about.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path fill="#FF8700" d="M0 0h64v64H0z"/><path fill="#FFF" d="M42.8 32.8c-3.6 0-8.1-10.1-8.1-15.1 0-2.3.9-2.7 3.2-2.7 5.5 0 11 .9 11 4-.1 6.2-4 13.8-6.1 13.8zM28.5 18.5c0 5 6.4 20.2 10.7 20.2.5 0 .9-.1 1.4-.2-3.8 6.1-8.4 10.6-11.2 10.6-5.9 0-14.3-17.9-14.3-25.7 0-1.2.3-2.2.7-2.8 2-2.5 8.4-4.4 13.7-5-.6.4-1 1-1 2.9z"/></svg>

typo3/sysext/about/composer.json

@@ -0,0 +1,34 @@
+{
+	"name": "typo3/cms-about",
+	"type": "typo3-cms-framework",
+	"description": "Shows info about TYPO3, installed extensions and a separate module for available modules.",
+	"homepage": "https://typo3.org",
+	"license": ["GPL-2.0-or-later"],
+	"authors": [{
+		"name": "TYPO3 Core Team",
+		"email": "typo3cms@typo3.org",
+		"role": "Developer"
+	}],
+	"config": {
+		"sort-packages": true
+	},
+	"require": {
+		"typo3/cms-core": "9.5.31"
+	},
+	"conflict": {
+		"typo3/cms": "*"
+	},
+	"extra": {
+		"typo3/cms": {
+			"Package": {
+				"partOfFactoryDefault": true
+			},
+			"extension-key": "about"
+		}
+	},
+	"autoload": {
+		"psr-4": {
+			"TYPO3\\CMS\\About\\": "Classes/"
+		}
+	}
+}

typo3/sysext/about/ext_emconf.php

@@ -0,0 +1,20 @@
+<?php
+$EM_CONF[$_EXTKEY] = [
+    'title' => 'Help>About',
+    'description' => 'Shows info about TYPO3, installed extensions and a separate module for available modules.',
+    'category' => 'module',
+    'state' => 'stable',
+    'uploadfolder' => 0,
+    'createDirs' => '',
+    'clearCacheOnLoad' => 0,
+    'author' => 'TYPO3 Core Team',
+    'author_email' => 'typo3cms@typo3.org',
+    'version' => '9.5.31',
+    'constraints' => [
+        'depends' => [
+            'typo3' => '9.5.31',
+        ],
+        'conflicts' => [],
+        'suggests' => [],
+    ],
+];

typo3/sysext/about/ext_tables.php

@@ -0,0 +1,16 @@
+<?php
+defined('TYPO3_MODE') or die();
+
+\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addModule(
+    'help',
+    'AboutAbout',
+    'top',
+    null,
+    [
+        'routeTarget' => \TYPO3\CMS\About\Controller\AboutController::class . '::indexAction',
+        'access' => 'user,group',
+        'name' => 'help_AboutAbout',
+        'icon' => 'EXT:about/Resources/Public/Icons/module-about.svg',
+        'labels' => 'LLL:EXT:about/Resources/Private/Language/Modules/about.xlf'
+    ]
+);

typo3/sysext/adminpanel/Classes/Controller/AjaxController.php

@@ -0,0 +1,102 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Controller;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Adminpanel\Service\ConfigurationService;
+use TYPO3\CMS\Adminpanel\Service\ModuleLoader;
+use TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
+use TYPO3\CMS\Core\Http\JsonResponse;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Admin Panel Ajax Controller - Route endpoint for ajax actions
+ *
+ * @internal
+ */
+class AjaxController
+{
+    /**
+     * @var array
+     */
+    protected $adminPanelModuleConfiguration;
+
+    /**
+     * @var ModuleLoader
+     */
+    protected $moduleLoader;
+
+    /**
+     * @var ConfigurationService
+     */
+    private $configurationService;
+
+    /**
+     * @param ConfigurationService $configurationService
+     * @param ModuleLoader $moduleLoader
+     */
+    public function __construct(ConfigurationService $configurationService = null, ModuleLoader $moduleLoader = null)
+    {
+        $this->configurationService = $configurationService
+                                      ??
+                                      GeneralUtility::makeInstance(ConfigurationService::class);
+        $this->adminPanelModuleConfiguration = $GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['adminpanel']['modules'] ?? [];
+        $this->moduleLoader = $moduleLoader ?? GeneralUtility::makeInstance(ModuleLoader::class);
+    }
+
+    /**
+     * Save adminPanel data
+     *
+     * @param ServerRequestInterface $request
+     * @return JsonResponse
+     */
+    public function saveDataAction(ServerRequestInterface $request): JsonResponse
+    {
+        $this->configurationService->saveConfiguration(
+            $this->moduleLoader->validateSortAndInitializeModules($this->adminPanelModuleConfiguration),
+            $request
+        );
+        return new JsonResponse(['success' => true]);
+    }
+
+    /**
+     * Toggle admin panel active state via UC
+     *
+     * @return JsonResponse
+     */
+    public function toggleActiveState(): JsonResponse
+    {
+        $backendUser = $this->getBackendUser();
+        if ($backendUser->uc['AdminPanel']['display_top'] ?? false) {
+            $backendUser->uc['AdminPanel']['display_top'] = false;
+        } else {
+            $backendUser->uc['AdminPanel']['display_top'] = true;
+        }
+        $backendUser->writeUC();
+        return new JsonResponse(['success' => true]);
+    }
+
+    /**
+     * Returns the current BE user.
+     *
+     * @return BackendUserAuthentication
+     */
+    protected function getBackendUser(): BackendUserAuthentication
+    {
+        return $GLOBALS['BE_USER'];
+    }
+}

typo3/sysext/adminpanel/Classes/Controller/MainController.php

@@ -0,0 +1,243 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Controller;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ConfigurableInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\DataProviderInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\InitializableInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ModuleDataStorageCollection;
+use TYPO3\CMS\Adminpanel\ModuleApi\ModuleInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\PageSettingsProviderInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ShortInfoProviderInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\SubmoduleProviderInterface;
+use TYPO3\CMS\Adminpanel\Service\ConfigurationService;
+use TYPO3\CMS\Adminpanel\Service\ModuleLoader;
+use TYPO3\CMS\Adminpanel\Utility\ResourceUtility;
+use TYPO3\CMS\Adminpanel\Utility\StateUtility;
+use TYPO3\CMS\Adminpanel\View\AdminPanelView;
+use TYPO3\CMS\Backend\Routing\UriBuilder;
+use TYPO3\CMS\Core\Cache\CacheManager;
+use TYPO3\CMS\Core\SingletonInterface;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Fluid\View\StandaloneView;
+
+/**
+ * Main controller for the admin panel
+ *
+ * @internal
+ */
+class MainController implements SingletonInterface
+{
+    /**
+     * @var \TYPO3\CMS\Adminpanel\ModuleApi\ModuleInterface[]
+     */
+    protected $modules = [];
+
+    /**
+     * @var ModuleLoader
+     */
+    protected $moduleLoader;
+
+    /**
+     * @var UriBuilder
+     */
+    protected $uriBuilder;
+
+    /**
+     * @var ConfigurationService
+     */
+    protected $configurationService;
+
+    /**
+     * @var array
+     */
+    protected $adminPanelModuleConfiguration;
+
+    /**
+     * @param ModuleLoader $moduleLoader
+     * @param UriBuilder $uriBuilder
+     * @param ConfigurationService $configurationService
+     */
+    public function __construct(
+        ModuleLoader $moduleLoader = null,
+        UriBuilder $uriBuilder = null,
+        ConfigurationService $configurationService = null
+    ) {
+        $this->moduleLoader = $moduleLoader ?? GeneralUtility::makeInstance(ModuleLoader::class);
+        $this->uriBuilder = $uriBuilder ?? GeneralUtility::makeInstance(UriBuilder::class);
+        $this->configurationService = $configurationService
+                                      ??
+                                      GeneralUtility::makeInstance(ConfigurationService::class);
+        $this->adminPanelModuleConfiguration = $GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['adminpanel']['modules'] ?? [];
+    }
+
+    /**
+     * Initializes settings for the admin panel.
+     *
+     * @param ServerRequestInterface $request
+     */
+    public function initialize(ServerRequestInterface $request): void
+    {
+        $this->modules = $this->moduleLoader->validateSortAndInitializeModules(
+            $this->adminPanelModuleConfiguration
+        );
+
+        if (StateUtility::isActivatedForUser()) {
+            $this->initializeModules($request, $this->modules);
+        }
+    }
+
+    /**
+     * Renders the admin panel - Called in PSR-15 Middleware
+     *
+     * @see \TYPO3\CMS\Adminpanel\Middleware\AdminPanelRenderer
+     * @param \Psr\Http\Message\ServerRequestInterface $request
+     * @return string
+     */
+    public function render(ServerRequestInterface $request): string
+    {
+        // legacy handling, deprecated, will be removed in TYPO3 v10.0.
+        $adminPanelView = GeneralUtility::makeInstance(AdminPanelView::class);
+        $hookObjectContent = $adminPanelView->callDeprecatedHookObject();
+        // end legacy handling
+
+        $resources = ResourceUtility::getResources();
+
+        $view = GeneralUtility::makeInstance(StandaloneView::class);
+        $templateNameAndPath = 'EXT:adminpanel/Resources/Private/Templates/Main.html';
+        $view->setTemplatePathAndFilename(GeneralUtility::getFileAbsFileName($templateNameAndPath));
+        $view->setPartialRootPaths(['EXT:adminpanel/Resources/Private/Partials']);
+        $view->setLayoutRootPaths(['EXT:adminpanel/Resources/Private/Layouts']);
+
+        $view->assignMultiple(
+            [
+                'toggleActiveUrl' => $this->generateBackendUrl('ajax_adminPanel_toggle'),
+                'resources' => $resources,
+                'adminPanelActive' => StateUtility::isOpen(),
+            ]
+        );
+        if (StateUtility::isOpen()) {
+            $cache = GeneralUtility::makeInstance(CacheManager::class)->getCache('adminpanel_requestcache');
+            $requestId = $request->getAttribute('adminPanelRequestId');
+            $data = $cache->get($requestId);
+            $moduleResources = ResourceUtility::getAdditionalResourcesForModules($this->modules);
+            $settingsModules = array_filter($this->modules, function (ModuleInterface $module) {
+                return $module instanceof PageSettingsProviderInterface;
+            });
+            $parentModules = array_filter(
+                $this->modules,
+                function (ModuleInterface $module) {
+                    return $module instanceof SubmoduleProviderInterface && $module instanceof ShortInfoProviderInterface;
+                }
+            );
+            $view->assignMultiple(
+                [
+                    'modules' => $this->modules,
+                    'settingsModules' => $settingsModules,
+                    'parentModules' => $parentModules,
+                    'hookObjectContent' => $hookObjectContent,
+                    'saveUrl' => $this->generateBackendUrl('ajax_adminPanel_saveForm'),
+                    'moduleResources' => $moduleResources,
+                    'requestId' => $requestId,
+                    'data' => $data ?? [],
+                ]
+            );
+        }
+        return $view->render();
+    }
+
+    /**
+     * Stores data for admin panel in cache - Called in PSR-15 Middleware
+     *
+     * @see \TYPO3\CMS\Adminpanel\Middleware\AdminPanelDataPersister
+     * @param \Psr\Http\Message\ServerRequestInterface $request
+     * @throws \TYPO3\CMS\Core\Cache\Exception\NoSuchCacheException
+     */
+    public function storeData(ServerRequestInterface $request): void
+    {
+        if (StateUtility::isOpen()) {
+            $data = $this->storeDataPerModule(
+                $request,
+                $this->modules,
+                GeneralUtility::makeInstance(ModuleDataStorageCollection::class)
+            );
+            $cache = GeneralUtility::makeInstance(CacheManager::class)->getCache('adminpanel_requestcache');
+            $cache->set($request->getAttribute('adminPanelRequestId'), $data);
+            $cache->collectGarbage();
+        }
+    }
+
+    /**
+     * Generate a url to a backend route
+     *
+     * @param string $route
+     * @return string
+     */
+    protected function generateBackendUrl(string $route): string
+    {
+        return (string)$this->uriBuilder->buildUriFromRoute($route);
+    }
+
+    /**
+     * @param \Psr\Http\Message\ServerRequestInterface $request
+     * @param \TYPO3\CMS\Adminpanel\ModuleApi\ModuleInterface[] $modules
+     */
+    protected function initializeModules(ServerRequestInterface $request, array $modules): void
+    {
+        foreach ($modules as $module) {
+            if (
+                ($module instanceof InitializableInterface)
+                && (
+                    (($module instanceof ConfigurableInterface) && $module->isEnabled())
+                    || (!($module instanceof ConfigurableInterface))
+                )
+            ) {
+                $module->initializeModule($request);
+            }
+            if ($module instanceof SubmoduleProviderInterface) {
+                $this->initializeModules($request, $module->getSubModules());
+            }
+        }
+    }
+
+    /**
+     * @param \Psr\Http\Message\ServerRequestInterface $request
+     * @param \TYPO3\CMS\Adminpanel\ModuleApi\ModuleInterface[] $modules
+     * @param ModuleDataStorageCollection $data
+     * @return ModuleDataStorageCollection
+     */
+    protected function storeDataPerModule(ServerRequestInterface $request, array $modules, ModuleDataStorageCollection $data): ModuleDataStorageCollection
+    {
+        foreach ($modules as $module) {
+            if (
+                ($module instanceof DataProviderInterface)
+                && (
+                    (($module instanceof ConfigurableInterface) && $module->isEnabled())
+                    || (!($module instanceof ConfigurableInterface))
+                )
+            ) {
+                $data->addModuleData($module, $module->getDataToStore($request));
+            }
+
+            if ($module instanceof SubmoduleProviderInterface) {
+                $this->storeDataPerModule($request, $module->getSubModules(), $data);
+            }
+        }
+        return $data;
+    }
+}

typo3/sysext/adminpanel/Classes/Exceptions/InvalidConfigurationException.php

@@ -0,0 +1,24 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Exceptions;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+/**
+ * Exception class for invalid admin panel configuration
+ */
+class InvalidConfigurationException extends \RuntimeException
+{
+}

typo3/sysext/adminpanel/Classes/Log/DoctrineSqlLogger.php

@@ -0,0 +1,100 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Log;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Doctrine\DBAL\Logging\SQLLogger;
+use Psr\Log\LoggerAwareInterface;
+use Psr\Log\LoggerAwareTrait;
+use TYPO3\CMS\Adminpanel\Utility\MemoryUtility;
+
+/**
+ * Doctrine SQL Logger implementation for recording queries for the admin panel
+ */
+class DoctrineSqlLogger implements SQLLogger, LoggerAwareInterface
+{
+    use LoggerAwareTrait;
+
+    /**
+     * Executed SQL queries.
+     *
+     * @var array
+     */
+    protected $queries = [];
+
+    /**
+     * If Debug Stack is enabled (log queries) or not.
+     *
+     * @var bool
+     */
+    protected $enabled = true;
+
+    /**
+     * @var float
+     */
+    protected $start;
+
+    /**
+     * @var int
+     */
+    protected $currentQuery = 0;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function startQuery($sql, array $params = null, array $types = null)
+    {
+        if ($this->enabled && MemoryUtility::isMemoryConsumptionTooHigh()) {
+            $this->enabled = false;
+            $this->logger->warning('SQL Logging consumed too much memory, aborted. Not all queries have been recorded.');
+        }
+        if ($this->enabled) {
+            $this->start = microtime(true);
+            $backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 7);
+            // remove this method
+            array_shift($backtrace);
+            // remove doctrine execute query
+            array_shift($backtrace);
+            // remove queryBuilder execute
+            array_shift($backtrace);
+            $this->queries[++$this->currentQuery] = [
+                'sql' => $sql,
+                'params' => $params,
+                'types' => $types,
+                'executionMS' => 0,
+                'backtrace' => $backtrace
+            ];
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function stopQuery()
+    {
+        if ($this->enabled) {
+            $this->queries[$this->currentQuery]['executionMS'] = microtime(true) - $this->start;
+        }
+    }
+
+    /**
+     * @return array
+     */
+    public function getQueries(): array
+    {
+        return $this->queries;
+    }
+}

typo3/sysext/adminpanel/Classes/Log/InMemoryLogWriter.php

@@ -0,0 +1,75 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Log;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Adminpanel\Utility\MemoryUtility;
+use TYPO3\CMS\Core\Log\LogLevel;
+use TYPO3\CMS\Core\Log\LogRecord;
+use TYPO3\CMS\Core\Log\Writer\AbstractWriter;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Log writer that writes the log records into a static public class variable
+ * for InMemory processing
+ */
+class InMemoryLogWriter extends AbstractWriter
+{
+    public static $log = [];
+
+    private static $memoryLock = false;
+
+    /**
+     * Writes the log record
+     *
+     * @param LogRecord $record Log record
+     * @return self
+     * @throws \RuntimeException
+     */
+    public function writeLog(LogRecord $record): self
+    {
+        // Guard: Locked Writer
+        if (self::$memoryLock === true) {
+            return $this;
+        }
+
+        // Guard: Memory Usage
+        if (!self::$memoryLock && MemoryUtility::isMemoryConsumptionTooHigh()) {
+            $this->lockWriter();
+            return $this;
+        }
+
+        self::$log[] = $record;
+
+        return $this;
+    }
+
+    /**
+     * Lock writer and add a info message that there may potentially be more entries.
+     */
+    protected function lockWriter(): void
+    {
+        self::$memoryLock = true;
+        /** @var LogRecord $record */
+        $record = GeneralUtility::makeInstance(
+            LogRecord::class,
+            'TYPO3.CMS.AdminPanel.Log.InMemoryLogWriter',
+            LogLevel::INFO,
+            '... Further log entries omitted, memory usage too high.'
+        );
+        self::$log[] = $record;
+    }
+}

typo3/sysext/adminpanel/Classes/Middleware/AdminPanelDataPersister.php

@@ -0,0 +1,58 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Middleware;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\MiddlewareInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+use TYPO3\CMS\Adminpanel\Controller\MainController;
+use TYPO3\CMS\Adminpanel\Utility\StateUtility;
+use TYPO3\CMS\Core\Http\NullResponse;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
+
+/**
+ * Store request data of current request in cache for rendering in admin panel
+ *
+ * @internal
+ */
+class AdminPanelDataPersister implements MiddlewareInterface
+{
+    /**
+     * Render the admin panel if activated
+     * @param ServerRequestInterface $request
+     * @param RequestHandlerInterface $handler
+     * @return ResponseInterface
+     */
+    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
+    {
+        $response = $handler->handle($request);
+        if (
+            !($response instanceof NullResponse)
+            && $GLOBALS['TSFE'] instanceof TypoScriptFrontendController
+            && $GLOBALS['TSFE']->isOutputting()
+            && StateUtility::isActivatedForUser()
+            && StateUtility::isActivatedInTypoScript()
+            && !StateUtility::isHiddenForUser()
+        ) {
+            $mainController = GeneralUtility::makeInstance(MainController::class);
+            $mainController->storeData($request);
+        }
+        return $response;
+    }
+}

typo3/sysext/adminpanel/Classes/Middleware/AdminPanelInitiator.php

@@ -0,0 +1,60 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Middleware;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\MiddlewareInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+use TYPO3\CMS\Adminpanel\Controller\MainController;
+use TYPO3\CMS\Adminpanel\Utility\StateUtility;
+use TYPO3\CMS\Adminpanel\View\AdminPanelView;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * PSR-15 Middleware to initialize the admin panel
+ *
+ * @internal
+ */
+class AdminPanelInitiator implements MiddlewareInterface
+{
+    /**
+     * Initialize the adminPanel if
+     * - backend user is logged in
+     * - at least one adminpanel functionality is enabled
+     * - admin panel is open
+     *
+     * @param ServerRequestInterface $request
+     * @param RequestHandlerInterface $handler
+     * @return ResponseInterface
+     */
+    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
+    {
+        if (StateUtility::isActivatedForUser() && StateUtility::isOpen()) {
+            $request = $request->withAttribute('adminPanelRequestId', substr(md5(uniqid('', true)), 0, 13));
+            $adminPanelController = GeneralUtility::makeInstance(
+                MainController::class
+            );
+            $adminPanelController->initialize($request);
+            // legacy handling
+            $beUser = $GLOBALS['BE_USER'];
+            $beUser->adminPanel = GeneralUtility::makeInstance(AdminPanelView::class);
+            $beUser->extAdmEnabled = true;
+        }
+        return $handler->handle($request);
+    }
+}

typo3/sysext/adminpanel/Classes/Middleware/AdminPanelRenderer.php

@@ -0,0 +1,70 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Middleware;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\MiddlewareInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+use TYPO3\CMS\Adminpanel\Controller\MainController;
+use TYPO3\CMS\Adminpanel\Utility\StateUtility;
+use TYPO3\CMS\Core\Http\NullResponse;
+use TYPO3\CMS\Core\Http\Stream;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
+
+/**
+ * Render the admin panel via PSR-15 middleware
+ *
+ * @internal
+ */
+class AdminPanelRenderer implements MiddlewareInterface
+{
+
+    /**
+     * Render the admin panel if activated
+     * @param ServerRequestInterface $request
+     * @param RequestHandlerInterface $handler
+     * @return ResponseInterface
+     */
+    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
+    {
+        $response = $handler->handle($request);
+        if (
+            !($response instanceof NullResponse)
+            && $GLOBALS['TSFE'] instanceof TypoScriptFrontendController
+            && $GLOBALS['TSFE']->isOutputting()
+            && StateUtility::isActivatedForUser()
+            && StateUtility::isActivatedInTypoScript()
+            && !StateUtility::isHiddenForUser()
+        ) {
+            $mainController = GeneralUtility::makeInstance(MainController::class);
+            $body = $response->getBody();
+            $body->rewind();
+            $contents = $response->getBody()->getContents();
+            $content = str_ireplace(
+                '</body>',
+                $mainController->render($request) . '</body>',
+                $contents
+            );
+            $body = new Stream('php://temp', 'rw');
+            $body->write($content);
+            $response = $response->withBody($body);
+        }
+        return $response;
+    }
+}

typo3/sysext/adminpanel/Classes/Middleware/SqlLogging.php

@@ -0,0 +1,51 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Middleware;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\MiddlewareInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+use TYPO3\CMS\Adminpanel\Log\DoctrineSqlLogger;
+use TYPO3\CMS\Adminpanel\Utility\StateUtility;
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Enable sql logging for the admin panel
+ *
+ * @internal
+ */
+class SqlLogging implements MiddlewareInterface
+{
+
+    /**
+     * Enable SQL Logging as early as possible to catch all queries if the admin panel is active
+     * @param ServerRequestInterface $request
+     * @param RequestHandlerInterface $handler
+     * @return ResponseInterface
+     */
+    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
+    {
+        if (StateUtility::isActivatedForUser() && StateUtility::isOpen()) {
+            $connectionPool = GeneralUtility::makeInstance(ConnectionPool::class);
+            $connection = $connectionPool->getConnectionByName(ConnectionPool::DEFAULT_CONNECTION_NAME);
+            $connection->getConfiguration()->setSQLLogger(GeneralUtility::makeInstance(DoctrineSqlLogger::class));
+        }
+        return $handler->handle($request);
+    }
+}

typo3/sysext/adminpanel/Classes/ModuleApi/AbstractModule.php

@@ -0,0 +1,144 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ModuleApi;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Adminpanel\Service\ConfigurationService;
+use TYPO3\CMS\Backend\FrontendBackendUserAuthentication;
+use TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
+use TYPO3\CMS\Core\Localization\LanguageService;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Abstract base class for Admin Panel Modules containing helper methods and default interface implementations
+ * Extend this class when writing own admin panel modules (or implement the Interface directly)
+ */
+abstract class AbstractModule implements ModuleInterface, ConfigurableInterface, SubmoduleProviderInterface
+{
+
+    /**
+     * @var ModuleInterface[]
+     */
+    protected $subModules = [];
+
+    /**
+     * Main Configuration (from UserTSConfig, admPanel)
+     *
+     * @var array
+     */
+    protected $mainConfiguration;
+
+    /**
+     * @var ConfigurationService
+     */
+    protected $configurationService;
+
+    public function __construct()
+    {
+        $this->configurationService = GeneralUtility::makeInstance(ConfigurationService::class);
+        $this->mainConfiguration = $this->configurationService->getMainConfiguration();
+    }
+
+    /**
+     * Returns true if the module is
+     * -> either enabled via TSConfig admPanel.enable
+     * -> or any setting is overridden
+     * override is a way to use functionality of the admin panel without displaying the admin panel to users
+     * for example: hidden records or pages can be displayed by default
+     *
+     * @return bool
+     */
+    public function isEnabled(): bool
+    {
+        $identifier = $this->getIdentifier();
+        $result = $this->isEnabledViaTsConfig();
+        if ($this->mainConfiguration['override.'][$identifier] ?? false) {
+            $result = (bool)$this->mainConfiguration['override.'][$identifier];
+        }
+        return $result;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function setSubModules(array $subModules): void
+    {
+        $this->subModules = $subModules;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getSubModules(): array
+    {
+        return $this->subModules;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function hasSubmoduleSettings(): bool
+    {
+        $hasSettings = false;
+        foreach ($this->subModules as $subModule) {
+            if ($subModule instanceof ModuleSettingsProviderInterface) {
+                $hasSettings = true;
+                break;
+            }
+            if ($subModule instanceof SubmoduleProviderInterface) {
+                $hasSettings = $subModule->hasSubmoduleSettings();
+            }
+        }
+        return $hasSettings;
+    }
+
+    /**
+     * Returns the current BE user.
+     *
+     * @return BackendUserAuthentication|FrontendBackendUserAuthentication
+     */
+    protected function getBackendUser(): BackendUserAuthentication
+    {
+        return $GLOBALS['BE_USER'];
+    }
+
+    /**
+     * Returns LanguageService
+     *
+     * @return LanguageService
+     */
+    protected function getLanguageService(): LanguageService
+    {
+        return $GLOBALS['LANG'];
+    }
+
+    /**
+     * Returns true if TSConfig admPanel.enable is set for this module (or all modules)
+     *
+     * @return bool
+     */
+    protected function isEnabledViaTsConfig(): bool
+    {
+        $result = false;
+        $identifier = $this->getIdentifier();
+        if (!empty($this->mainConfiguration['enable.']['all'])) {
+            $result = true;
+        } elseif (!empty($this->mainConfiguration['enable.'][$identifier])) {
+            $result = true;
+        }
+        return $result;
+    }
+}

typo3/sysext/adminpanel/Classes/ModuleApi/AbstractSubModule.php

@@ -0,0 +1,37 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ModuleApi;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Core\Localization\LanguageService;
+
+/**
+ * Abstract SubModule - Base class for sub modules in the admin panel
+ *
+ * Extend this class when writing own sub modules
+ */
+abstract class AbstractSubModule implements ModuleInterface, ContentProviderInterface
+{
+    /**
+     * Returns LanguageService
+     *
+     * @return LanguageService
+     */
+    protected function getLanguageService(): LanguageService
+    {
+        return $GLOBALS['LANG'];
+    }
+}

typo3/sysext/adminpanel/Classes/ModuleApi/ConfigurableInterface.php

@@ -0,0 +1,39 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ModuleApi;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+/**
+ * AdminPanel ConfigurableInterface
+ *
+ * Used to indicate that an adminpanel module can be enabled or disabled via configuration
+ *
+ * Usual implementation is done via user tsconfig
+ * @see \TYPO3\CMS\Adminpanel\ModuleApi\AbstractModule::isEnabled()
+ */
+interface ConfigurableInterface
+{
+    /**
+     * Module is enabled
+     * -> should be initialized
+     * A module may be enabled but not shown
+     * -> only the initializeModule() method
+     * will be called
+     *
+     * @return bool
+     */
+    public function isEnabled(): bool;
+}

typo3/sysext/adminpanel/Classes/ModuleApi/ContentProviderInterface.php

@@ -0,0 +1,40 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ModuleApi;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+/**
+ * Adminpanel interface to denote that a module has content to be rendered
+ *
+ * In general there are two main types of admin panel modules: those providing settings influencing page rendering
+ * (for example the preview module provides settings for displaying hidden pages or records) and those rendering
+ * information regarding the current request (for example the log module).
+ *
+ * Modules implementing this interface denote that they render module content.
+ */
+interface ContentProviderInterface
+{
+    /**
+     * Main method for content generation of an admin panel module.
+     * Return content as HTML. For modules implementing the DataProviderInterface
+     * the "ModuleData" object is automatically filled with the stored data - if
+     * no data is given a "fresh" ModuleData object is injected.
+     *
+     * @param \TYPO3\CMS\Adminpanel\ModuleApi\ModuleData $data
+     * @return string
+     */
+    public function getContent(ModuleData $data): string;
+}

typo3/sysext/adminpanel/Classes/ModuleApi/DataProviderInterface.php

@@ -0,0 +1,36 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ModuleApi;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ServerRequestInterface;
+
+/**
+ * Adminpanel interface to denote that a module provides data to be stored for the current request
+ *
+ * Adminpanel modules can save data to the adminpanel request cache and access this data in the rendering process.
+ * Data necessary for rendering the module content has to be returned via this interface implementation, as this allows
+ * for separate data collection and rendering and is a pre-requisite for a standalone debug tool.
+ */
+interface DataProviderInterface
+{
+
+    /**
+     * @param \Psr\Http\Message\ServerRequestInterface $request
+     * @return \TYPO3\CMS\Adminpanel\ModuleApi\ModuleData
+     */
+    public function getDataToStore(ServerRequestInterface $request): ModuleData;
+}

typo3/sysext/adminpanel/Classes/ModuleApi/InitializableInterface.php

@@ -0,0 +1,41 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ModuleApi;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ServerRequestInterface;
+
+/**
+ * Adminpanel interface to denote that a module has tasks to perform on initialization of the request
+ *
+ * Modules that need to set data / options early in the rendering process to be able to collect data, should implement
+ * this interface - for example the log module uses the initialization to register the admin panel log collection early
+ * in the rendering process.
+ *
+ * Initialize is called in the PSR-15 middleware stack through admin panel initialisation via the AdminPanel MainController.
+ *
+ * @see \TYPO3\CMS\Adminpanel\Middleware\AdminPanelInitiator::process()
+ * @see \TYPO3\CMS\Adminpanel\Controller\MainController::initialize()
+ */
+interface InitializableInterface
+{
+    /**
+     * Initialize the module - runs early in a TYPO3 request
+     *
+     * @param ServerRequestInterface $request
+     */
+    public function initializeModule(ServerRequestInterface $request): void;
+}

typo3/sysext/adminpanel/Classes/ModuleApi/ModuleData.php

@@ -0,0 +1,27 @@
+<?php
+declare(strict_types = 1);
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+namespace TYPO3\CMS\Adminpanel\ModuleApi;
+
+/**
+ * ModuleData is a simple wrapper object which extends ArrayObject
+ * which is used to hold Adminpanel module data
+ *
+ * It's a separate class to add semantic meaning to its' usage
+ */
+class ModuleData extends \ArrayObject
+{
+}

typo3/sysext/adminpanel/Classes/ModuleApi/ModuleDataStorageCollection.php

@@ -0,0 +1,39 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ModuleApi;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+/**
+ * ModuleDataStorageCollection is an object storage for adminpanel modules and their data
+ */
+class ModuleDataStorageCollection extends \SplObjectStorage
+{
+    public function addModuleData(DataProviderInterface $module, ModuleData $moduleData): void
+    {
+        $this->attach($module, $moduleData);
+    }
+
+    public function getHash($object)
+    {
+        if ($object instanceof ModuleInterface) {
+            return $object->getIdentifier();
+        }
+        throw new \InvalidArgumentException(
+            'Only modules implementing ' . ModuleInterface::class . ' are allowed to be stored',
+            1535301628
+        );
+    }
+}

typo3/sysext/adminpanel/Classes/ModuleApi/ModuleInterface.php

@@ -0,0 +1,40 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ModuleApi;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+/**
+ * Adminpanel interface for all modules
+ *
+ * Every adminpanel module needs to implement this interface as a bare minimum.
+ */
+interface ModuleInterface
+{
+    /**
+     * Identifier for this module,
+     * for example "preview" or "cache"
+     *
+     * @return string
+     */
+    public function getIdentifier(): string;
+
+    /**
+     * Module label
+     *
+     * @return string
+     */
+    public function getLabel(): string;
+}

typo3/sysext/adminpanel/Classes/ModuleApi/ModuleSettingsProviderInterface.php

@@ -0,0 +1,38 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ModuleApi;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+/**
+ * Adminpanel module settings interface denotes that a module has own settings.
+ *
+ * The adminpanel knows two types of settings:
+ * - ModuleSettings are relevant for the module itself and its representation (for example the log module provides settings
+ *   where displayed log level and grouping of the module can be configured)
+ * - PageSettings are relevant for rendering the page (for example the preview module provides settings showing or hiding
+ *   hidden content elements or simulating a specific rendering time)
+ *
+ * If a module provides settings relevant to its own content, use this interface.
+ *
+ * @see \TYPO3\CMS\Adminpanel\ModuleApi\PageSettingsProviderInterface
+ */
+interface ModuleSettingsProviderInterface
+{
+    /**
+     * @return string
+     */
+    public function getSettings(): string;
+}

typo3/sysext/adminpanel/Classes/ModuleApi/OnSubmitActorInterface.php

@@ -0,0 +1,35 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ModuleApi;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+use Psr\Http\Message\ServerRequestInterface;
+
+/**
+ * Adminpanel interface for modules that need to react on changed configuration
+ * (for example if fluid debug settings change, the frontend cache should be cleared)
+ */
+interface OnSubmitActorInterface
+{
+    /**
+     * Executed on saving / submit of the configuration form
+     * Can be used to react to changed settings
+     * (for example: clearing a specific cache)
+     *
+     * @param array $configurationToSave
+     * @param ServerRequestInterface $request
+     */
+    public function onSubmit(array $configurationToSave, ServerRequestInterface $request): void;
+}

typo3/sysext/adminpanel/Classes/ModuleApi/PageSettingsProviderInterface.php

@@ -0,0 +1,36 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ModuleApi;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+/**
+ * Adminpanel page settings interface denotes that a module has settings regarding the page rendering.
+ * The adminpanel knows two types of settings:
+ * - ModuleSettings are relevant for the module itself and its representation (for example the log module provides settings
+ *   where displayed log level and grouping of the module can be configured)
+ * - PageSettings are relevant for rendering the page (for example the preview module provides settings showing or hiding
+ *   hidden content elements or simulating a specific rendering time)
+ * If a module provides settings changing the rendering of the main page request, use this interface.
+ *
+ * @see \TYPO3\CMS\Adminpanel\ModuleApi\ModuleSettingsProviderInterface
+ */
+interface PageSettingsProviderInterface
+{
+    /**
+     * @return string
+     */
+    public function getPageSettings(): string;
+}

typo3/sysext/adminpanel/Classes/ModuleApi/ResourceProviderInterface.php

@@ -0,0 +1,44 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ModuleApi;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+/**
+ * Adminpanel interface to denote that a module has own resource files.
+ *
+ * An adminpanel module implementing this interface may deliver custom JavaScript and Css files to provide additional
+ * styling and JavaScript functionality
+ */
+interface ResourceProviderInterface
+{
+    /**
+     * Returns a string array with javascript files that will be rendered after the module
+     *
+     * Example: return ['EXT:adminpanel/Resources/Public/JavaScript/Modules/Edit.js'];
+     *
+     * @return array
+     */
+    public function getJavaScriptFiles(): array;
+
+    /**
+     * Returns a string array with css files that will be rendered after the module
+     *
+     * Example: return ['EXT:adminpanel/Resources/Public/JavaScript/Modules/Edit.css'];
+     *
+     * @return array
+     */
+    public function getCssFiles(): array;
+}

typo3/sysext/adminpanel/Classes/ModuleApi/ShortInfoProviderInterface.php

@@ -0,0 +1,43 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ModuleApi;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+/**
+ * Adminpanel shortinfo provider interface can be used to add the module to the short info bar of the adminpanel
+ *
+ * Modules providing shortinfo will be displayed in the bottom bar of the adminpanel and may provide "at a glance" info
+ * about the current state (for example the log module provides the number of warnings and errors directly).
+ *
+ * Be aware that modules with submodules at the moment can only render one short info (the one of the "parent" module).
+ * This will likely change in TYPO3 v10.0.
+ */
+interface ShortInfoProviderInterface
+{
+    /**
+     * Displayed directly in the bar
+     *
+     * @return string
+     */
+    public function getShortInfo(): string;
+
+    /**
+     * Icon identifier - needs to be registered in iconRegistry
+     *
+     * @return string
+     */
+    public function getIconIdentifier(): string;
+}

typo3/sysext/adminpanel/Classes/ModuleApi/SubmoduleProviderInterface.php

@@ -0,0 +1,51 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ModuleApi;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+/**
+ * Adminpanel interface providing hierarchical functionality for modules
+ *
+ * A module implementing this interface may have submodules. Be aware that the current implementation of the adminpanel
+ * renders a maximum level of 2 for modules. If you need to render more levels, write your own module and implement
+ * multi-hierarchical rendering in the getContent method
+ *
+ * @see \TYPO3\CMS\Adminpanel\ModuleApi\ContentProviderInterface::getContent()
+ */
+interface SubmoduleProviderInterface
+{
+    /**
+     * Sets array of module instances (instances of `ModuleInterface`) as submodules
+     *
+     * @param \TYPO3\CMS\Adminpanel\ModuleApi\ModuleInterface[] $subModules
+     */
+    public function setSubModules(array $subModules): void;
+
+    /**
+     * Returns an array of module instances
+     *
+     * @return \TYPO3\CMS\Adminpanel\ModuleApi\ModuleInterface[]
+     */
+    public function getSubModules(): array;
+
+    /**
+     * Return true if any of the submodules has settings to be rendered
+     * (can be used to render settings in a central place)
+     *
+     * @return bool
+     */
+    public function hasSubmoduleSettings(): bool;
+}

typo3/sysext/adminpanel/Classes/Modules/CacheModule.php

@@ -0,0 +1,124 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Modules;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\AbstractModule;
+use TYPO3\CMS\Adminpanel\ModuleApi\InitializableInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\PageSettingsProviderInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ResourceProviderInterface;
+use TYPO3\CMS\Backend\Routing\UriBuilder;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Fluid\View\StandaloneView;
+use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
+
+class CacheModule extends AbstractModule implements PageSettingsProviderInterface, InitializableInterface, ResourceProviderInterface
+{
+    /**
+     * @return string
+     */
+    public function getIconIdentifier(): string
+    {
+        return 'apps-toolbar-menu-cache';
+    }
+
+    /**
+     * @return string
+     */
+    public function getPageSettings(): string
+    {
+        $view = GeneralUtility::makeInstance(StandaloneView::class);
+        $templateNameAndPath = 'EXT:adminpanel/Resources/Private/Templates/Modules/Settings/Cache.html';
+        $view->setTemplatePathAndFilename(GeneralUtility::getFileAbsFileName($templateNameAndPath));
+        $view->setPartialRootPaths(['EXT:adminpanel/Resources/Private/Partials']);
+
+        $uriBuilder = GeneralUtility::makeInstance(UriBuilder::class);
+        $feCacheClear = $this->getBackendUser()->isAdmin() || $this->getBackendUser()->getTSConfig()['options.']['clearCache.']['pages'];
+
+        $view->assignMultiple(
+            [
+                'isEnabled' => $this->getBackendUser()->uc['AdminPanel']['display_cache'],
+                'noCache' => $this->getBackendUser()->uc['AdminPanel']['cache_noCache'],
+                'currentId' => $this->getTypoScriptFrontendController()->id,
+                'clearPageCacheUrl' => $feCacheClear ? (string)$uriBuilder->buildUriFromRoute('tce_db', ['cacheCmd' => 'pages']) : '',
+                'clearCurrentPageCacheUrl' => (string)$uriBuilder->buildUriFromRoute(
+                    'tce_db',
+                    [
+                        'cacheCmd' => $this->getTypoScriptFrontendController()->id,
+                    ]
+                ),
+            ]
+        );
+
+        return $view->render();
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getIdentifier(): string
+    {
+        return 'cache';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getLabel(): string
+    {
+        $locallangFileAndPath = 'LLL:EXT:adminpanel/Resources/Private/Language/locallang_cache.xlf:module.label';
+        return $this->getLanguageService()->sL($locallangFileAndPath);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function initializeModule(ServerRequestInterface $request): void
+    {
+        if ($this->configurationService->getConfigurationOption('cache', 'noCache')) {
+            $this->getTypoScriptFrontendController()->set_no_cache('Admin Panel: No Caching', true);
+        }
+    }
+
+    /**
+     * @return TypoScriptFrontendController
+     */
+    protected function getTypoScriptFrontendController(): TypoScriptFrontendController
+    {
+        return $GLOBALS['TSFE'];
+    }
+
+    /**
+     * @return array
+     */
+    public function getJavaScriptFiles(): array
+    {
+        return ['EXT:adminpanel/Resources/Public/JavaScript/Modules/Cache.js'];
+    }
+
+    /**
+     * Returns a string array with css files that will be rendered after the module
+     *
+     * Example: return ['EXT:adminpanel/Resources/Public/JavaScript/Modules/Edit.css'];
+     *
+     * @return array
+     */
+    public function getCssFiles(): array
+    {
+        return [];
+    }
+}

typo3/sysext/adminpanel/Classes/Modules/Debug/Log.php

@@ -0,0 +1,208 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Modules\Debug;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Adminpanel\Log\InMemoryLogWriter;
+use TYPO3\CMS\Adminpanel\ModuleApi\AbstractSubModule;
+use TYPO3\CMS\Adminpanel\ModuleApi\DataProviderInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\InitializableInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ModuleData;
+use TYPO3\CMS\Adminpanel\ModuleApi\ModuleSettingsProviderInterface;
+use TYPO3\CMS\Adminpanel\Service\ConfigurationService;
+use TYPO3\CMS\Core\Log\LogLevel;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Fluid\View\StandaloneView;
+
+/**
+ * Log Sub Module of the AdminPanel
+ *
+ * @internal
+ */
+class Log extends AbstractSubModule implements DataProviderInterface, ModuleSettingsProviderInterface, InitializableInterface
+{
+    protected $logLevel = LogLevel::INFO;
+
+    /**
+     * @var ConfigurationService
+     */
+    protected $configurationService;
+
+    public function __construct()
+    {
+        $this->configurationService = GeneralUtility::makeInstance(ConfigurationService::class);
+    }
+
+    /**
+     * @return string
+     */
+    public function getIdentifier(): string
+    {
+        return 'debug_log';
+    }
+
+    /**
+     * Sub-Module label
+     *
+     * @return string
+     */
+    public function getLabel(): string
+    {
+        return $this->getLanguageService()->sL(
+            'LLL:EXT:adminpanel/Resources/Private/Language/locallang_debug.xlf:submodule.log.label'
+        );
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getDataToStore(ServerRequestInterface $request): ModuleData
+    {
+        $levels = [];
+        for ($i = 1; $i <= LogLevel::DEBUG; $i++) {
+            $levels[] = [
+                'level' => $i,
+                'levelName' => LogLevel::getName($i),
+            ];
+        }
+
+        $log = InMemoryLogWriter::$log;
+
+        $logArray = [];
+        /** @var \TYPO3\CMS\Core\Log\LogRecord $logRecord */
+        foreach ($log as $logRecord) {
+            $entry = $logRecord->toArray();
+            // store only necessary info
+            unset($entry['data']);
+            $logArray[] = $entry;
+        }
+        return new ModuleData(
+            [
+                'levels' => $levels,
+                'startLevel' => (int)$this->getConfigOption('startLevel'),
+                'log' => $logArray,
+            ]
+        );
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getSettings(): string
+    {
+        $view = GeneralUtility::makeInstance(StandaloneView::class);
+        $templateNameAndPath = 'EXT:adminpanel/Resources/Private/Templates/Modules/Debug/LogSettings.html';
+        $view->setTemplatePathAndFilename(GeneralUtility::getFileAbsFileName($templateNameAndPath));
+        $view->setPartialRootPaths(['EXT:adminpanel/Resources/Private/Partials']);
+
+        $levels = [];
+        for ($i = 1; $i <= LogLevel::DEBUG; $i++) {
+            $levels[] = [
+                'level' => $i,
+                'levelName' => LogLevel::getName($i),
+            ];
+        }
+        $view->assignMultiple(
+            [
+                'levels' => $levels,
+                'startLevel' => (int)$this->getConfigOption('startLevel'),
+                'groupByComponent' => $this->getConfigOption('groupByComponent'),
+                'groupByLevel' => $this->getConfigOption('groupByLevel'),
+            ]
+        );
+
+        return $view->render();
+    }
+
+    /**
+     * Sub-Module content as rendered HTML
+     *
+     * @param \TYPO3\CMS\Adminpanel\ModuleApi\ModuleData $data
+     * @return string
+     */
+    public function getContent(ModuleData $data): string
+    {
+        $this->logLevel = $this->getConfigOption('startLevel');
+        $view = GeneralUtility::makeInstance(StandaloneView::class);
+        $templateNameAndPath = 'EXT:adminpanel/Resources/Private/Templates/Modules/Debug/Log.html';
+        $view->setTemplatePathAndFilename(GeneralUtility::getFileAbsFileName($templateNameAndPath));
+        $view->setPartialRootPaths(['EXT:adminpanel/Resources/Private/Partials']);
+        $sortedLog = [];
+        // settings for this module
+        $groupByComponent = $this->getConfigOption('groupByComponent');
+        $groupByLevel = $this->getConfigOption('groupByLevel');
+
+        foreach ($data['log'] as $logRecord) {
+            if ($logRecord['level'] > $this->logLevel) {
+                continue;
+            }
+            if ($groupByComponent && $groupByLevel) {
+                $sortedLog[$logRecord['component']][LogLevel::getName($logRecord['level'])][] = $logRecord;
+            } elseif ($groupByComponent) {
+                $sortedLog[$logRecord['component']][] = $logRecord;
+            } elseif ($groupByLevel) {
+                $sortedLog[$logRecord['level']][] = $logRecord;
+            } else {
+                $sortedLog[] = $logRecord;
+            }
+        }
+        $data['log'] = $sortedLog;
+        $data['groupByComponent'] = $groupByComponent;
+        $data['groupByLevel'] = $groupByLevel;
+        $view->assignMultiple($data->getArrayCopy());
+
+        return $view->render();
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function initializeModule(ServerRequestInterface $request): void
+    {
+        $this->logLevel = $this->getConfigOption('startLevel');
+
+        // set inMemoryLogWriter recursively for all configured namespaces/areas so we don't lose log entries
+        $configWithInMemoryWriter = $this->setLoggingConfigRecursive($GLOBALS['TYPO3_CONF_VARS']['LOG'] ?? []);
+
+        // in case there are empty array parts, remove them
+        $GLOBALS['TYPO3_CONF_VARS']['LOG'] = array_filter(
+            $configWithInMemoryWriter
+        );
+    }
+
+    protected function setLoggingConfigRecursive(array $logConfig): array
+    {
+        foreach ($logConfig as $key => $value) {
+            if ($key === 'writerConfiguration') {
+                $logConfig[$key] = $value;
+                $logConfig[$key][LogLevel::DEBUG][InMemoryLogWriter::class] = [];
+            } elseif (is_array($value)) {
+                $logConfig[$key] = $this->setLoggingConfigRecursive($value);
+            }
+        }
+        return $logConfig;
+    }
+
+    /**
+     * @param string $option
+     * @return string
+     */
+    protected function getConfigOption(string $option): string
+    {
+        return $this->configurationService->getConfigurationOption('debug_log', $option);
+    }
+}

typo3/sysext/adminpanel/Classes/Modules/Debug/QueryInformation.php

@@ -0,0 +1,131 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Modules\Debug;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Adminpanel\Log\DoctrineSqlLogger;
+use TYPO3\CMS\Adminpanel\ModuleApi\AbstractSubModule;
+use TYPO3\CMS\Adminpanel\ModuleApi\DataProviderInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ModuleData;
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Fluid\View\StandaloneView;
+
+/**
+ * Admin Panel Query Information module for showing SQL Queries
+ *
+ * @internal
+ */
+class QueryInformation extends AbstractSubModule implements DataProviderInterface
+{
+    /**
+     * Identifier for this Sub-module,
+     * for example "preview" or "cache"
+     *
+     * @return string
+     */
+    public function getIdentifier(): string
+    {
+        return 'debug_queryinformation';
+    }
+
+    /**
+     * Sub-Module label
+     *
+     * @return string
+     */
+    public function getLabel(): string
+    {
+        return $this->getLanguageService()->sL(
+            'LLL:EXT:adminpanel/Resources/Private/Language/locallang_debug.xlf:submodule.queryInformation.label'
+        );
+    }
+
+    /**
+     * @param ServerRequestInterface $request
+     * @return \TYPO3\CMS\Adminpanel\ModuleApi\ModuleData
+     * @throws \Doctrine\DBAL\DBALException
+     */
+    public function getDataToStore(ServerRequestInterface $request): ModuleData
+    {
+        $connectionPool = GeneralUtility::makeInstance(ConnectionPool::class);
+        $connection = $connectionPool->getConnectionByName(ConnectionPool::DEFAULT_CONNECTION_NAME);
+        $logger = $connection->getConfiguration()->getSQLLogger();
+        $data = [];
+        if ($logger instanceof DoctrineSqlLogger) {
+            $queries = $logger->getQueries();
+            $data['queries'] = $this->groupQueries($queries) ?? [];
+            $data['totalTime'] = array_sum(array_column($queries, 'executionMS')) * 1000;
+        }
+        return new ModuleData($data);
+    }
+
+    /**
+     * @param \TYPO3\CMS\Adminpanel\ModuleApi\ModuleData $data
+     * @return string Returns content of admin panel
+     */
+    public function getContent(ModuleData $data): string
+    {
+        $view = new StandaloneView();
+        $view->setTemplatePathAndFilename(
+            'EXT:adminpanel/Resources/Private/Templates/Modules/Debug/QueryInformation.html'
+        );
+        $this->getLanguageService()->includeLLFile('EXT:adminpanel/Resources/Private/Language/locallang_debug.xlf');
+        $view->assignMultiple($data->getArrayCopy());
+        return $view->render();
+    }
+
+    /**
+     * @param array $queries
+     * @return array
+     */
+    protected function groupQueries(array $queries): array
+    {
+        $groupedQueries = [];
+        foreach ($queries as $query) {
+            $identifier = sha1($query['sql']) . sha1(json_encode($query['backtrace']));
+            if (is_array($query['params'])) {
+                foreach ($query['params'] as $k => $param) {
+                    if (is_array($param)) {
+                        $query['params'][$k] = implode(',', $param);
+                    }
+                }
+            }
+            if (isset($groupedQueries[$identifier])) {
+                $groupedQueries[$identifier]['count']++;
+                $groupedQueries[$identifier]['time'] += ($query['executionMS'] * 1000);
+                $groupedQueries[$identifier]['queries'][] = $query;
+            } else {
+                $groupedQueries[$identifier] = [
+                    'sql' => $query['sql'],
+                    'time' => $query['executionMS'] * 1000,
+                    'count' => 1,
+                    'queries' => [
+                        $query,
+                    ],
+                ];
+            }
+        }
+        uasort(
+            $groupedQueries,
+            function ($a, $b) {
+                return $b['time'] <=> $a['time'];
+            }
+        );
+        return $groupedQueries;
+    }
+}

typo3/sysext/adminpanel/Classes/Modules/DebugModule.php

@@ -0,0 +1,65 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Modules;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Adminpanel\Log\InMemoryLogWriter;
+use TYPO3\CMS\Adminpanel\ModuleApi\AbstractModule;
+use TYPO3\CMS\Adminpanel\ModuleApi\ShortInfoProviderInterface;
+use TYPO3\CMS\Core\Log\LogRecord;
+
+/**
+ * Debug Module of the AdminPanel
+ */
+class DebugModule extends AbstractModule implements ShortInfoProviderInterface
+{
+
+    /**
+     * @inheritdoc
+     */
+    public function getIdentifier(): string
+    {
+        return 'debug';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getIconIdentifier(): string
+    {
+        return 'actions-debug';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getLabel(): string
+    {
+        return $this->getLanguageService()->sL(
+            'LLL:EXT:adminpanel/Resources/Private/Language/locallang_debug.xlf:module.label'
+        );
+    }
+
+    public function getShortInfo(): string
+    {
+        $errorsAndWarnings = array_filter(InMemoryLogWriter::$log, function (LogRecord $entry) {
+            return $entry->getLevel() <= 4;
+        });
+        return sprintf($this->getLanguageService()->sL(
+            'LLL:EXT:adminpanel/Resources/Private/Language/locallang_debug.xlf:module.shortinfo'
+        ), count($errorsAndWarnings));
+    }
+}

typo3/sysext/adminpanel/Classes/Modules/EditModule.php

@@ -0,0 +1,153 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Modules;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\AbstractModule;
+use TYPO3\CMS\Adminpanel\ModuleApi\InitializableInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\PageSettingsProviderInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ResourceProviderInterface;
+use TYPO3\CMS\Adminpanel\Service\EditToolbarService;
+use TYPO3\CMS\Backend\Utility\BackendUtility;
+use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Fluid\View\StandaloneView;
+use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
+
+/**
+ * Admin Panel Edit Module
+ */
+class EditModule extends AbstractModule implements PageSettingsProviderInterface, InitializableInterface, ResourceProviderInterface
+{
+    /**
+     * Creates the content for the "edit" section ("module") of the Admin Panel
+     *
+     * @return string HTML content for the section. Consists of a string with table-rows with four columns.
+     */
+    public function getPageSettings(): string
+    {
+        $editToolbarService = GeneralUtility::makeInstance(EditToolbarService::class);
+        $toolbar = $editToolbarService->createToolbar();
+        $view = GeneralUtility::makeInstance(StandaloneView::class);
+        $templateNameAndPath = 'EXT:adminpanel/Resources/Private/Templates/Modules/Settings/Edit.html';
+        $view->setTemplatePathAndFilename(GeneralUtility::getFileAbsFileName($templateNameAndPath));
+        $view->setPartialRootPaths(['EXT:adminpanel/Resources/Private/Partials']);
+        $view->assignMultiple(
+            [
+                'feEdit' => ExtensionManagementUtility::isLoaded('feedit'),
+                'display' => [
+                    'fieldIcons' => $this->configurationService->getConfigurationOption('edit', 'displayFieldIcons'),
+                    'displayIcons' => $this->configurationService->getConfigurationOption('edit', 'displayIcons'),
+                ],
+                'toolbar' => $toolbar,
+                'script' => [
+                    'pageUid' => (int)$this->getTypoScriptFrontendController()->page['uid'],
+                    'pageModule' => $this->getPageModule(),
+                    'backendScript' => BackendUtility::getBackendScript(),
+                    't3BeSitenameMd5' => md5('Typo3Backend-' . $GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename']),
+                ],
+            ]
+        );
+        return $view->render();
+    }
+
+    /**
+     * @return TypoScriptFrontendController
+     */
+    protected function getTypoScriptFrontendController(): TypoScriptFrontendController
+    {
+        return $GLOBALS['TSFE'];
+    }
+
+    /**
+     * @return string
+     */
+    private function getPageModule(): string
+    {
+        $pageModule = trim($this->getBackendUser()->getTSConfig()['options.']['overridePageModule'] ?? '');
+        return BackendUtility::isModuleSetInTBE_MODULES($pageModule) ? $pageModule : 'web_layout';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getIdentifier(): string
+    {
+        return 'edit';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getIconIdentifier(): string
+    {
+        return 'actions-open';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getLabel(): string
+    {
+        $locallangFileAndPath = 'LLL:EXT:adminpanel/Resources/Private/Language/locallang_edit.xlf:module.label';
+        return $this->getLanguageService()->sL($locallangFileAndPath);
+    }
+
+    /**
+     * Initialize the edit module
+     * Includes the frontend edit initialization
+     *
+     * @param ServerRequestInterface $request
+     *
+     * @todo move into fe_edit (including the module)
+     */
+    public function initializeModule(ServerRequestInterface $request): void
+    {
+        $extFeEditLoaded = ExtensionManagementUtility::isLoaded('feedit');
+        $typoScriptFrontend = $this->getTypoScriptFrontendController();
+        $typoScriptFrontend->displayEditIcons = $this->configurationService->getConfigurationOption('edit', 'displayIcons');
+        $typoScriptFrontend->displayFieldEditIcons = $this->configurationService->getConfigurationOption('edit', 'displayFieldIcons');
+
+        if ($request->getQueryParams()['ADMCMD_editIcons'] ?? $request->getParsedBody()['ADMCMD_editIcons'] ?? false) {
+            $typoScriptFrontend->displayFieldEditIcons = '1';
+        }
+        if ($extFeEditLoaded && $typoScriptFrontend->displayEditIcons) {
+            $typoScriptFrontend->set_no_cache('Admin Panel: Display edit icons', true);
+        }
+        if ($extFeEditLoaded && $typoScriptFrontend->displayFieldEditIcons) {
+            $typoScriptFrontend->set_no_cache('Admin Panel: Display field edit icons', true);
+        }
+    }
+
+    /**
+     * @return array
+     */
+    public function getJavaScriptFiles(): array
+    {
+        return ['EXT:adminpanel/Resources/Public/JavaScript/Modules/Edit.js'];
+    }
+
+    /**
+     * Returns a string array with css files that will be rendered after the module
+     *
+     * @return array
+     */
+    public function getCssFiles(): array
+    {
+        return [];
+    }
+}

typo3/sysext/adminpanel/Classes/Modules/Info/GeneralInformation.php

@@ -0,0 +1,186 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Modules\Info;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\AbstractSubModule;
+use TYPO3\CMS\Adminpanel\ModuleApi\DataProviderInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ModuleData;
+use TYPO3\CMS\Core\Context\Context;
+use TYPO3\CMS\Core\Context\UserAspect;
+use TYPO3\CMS\Core\TimeTracker\TimeTracker;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Fluid\View\StandaloneView;
+use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
+
+/**
+ * General information module displaying info about the current
+ * request
+ *
+ * @internal
+ */
+class GeneralInformation extends AbstractSubModule implements DataProviderInterface
+{
+    /**
+     * @inheritdoc
+     */
+    public function getDataToStore(ServerRequestInterface $request): ModuleData
+    {
+        /** @var UserAspect $frontendUserAspect */
+        $frontendUserAspect = GeneralUtility::makeInstance(Context::class)->getAspect('frontend.user');
+        $tsfe = $this->getTypoScriptFrontendController();
+        return new ModuleData(
+            [
+                'post' => $_POST,
+                'get' => $_GET,
+                'cookie' => $_COOKIE,
+                'server' => $_SERVER,
+                'info' => [
+                    'pageUid' => $tsfe->id,
+                    'pageType' => $tsfe->type,
+                    'groupList' => implode(',', $frontendUserAspect->getGroupIds()),
+                    'noCache' => $this->isNoCacheEnabled(),
+                    'countUserInt' => count($tsfe->config['INTincScript'] ?? []),
+                    'totalParsetime' => $this->getTimeTracker()->getParseTime(),
+                    'feUser' => [
+                        'uid' => $frontendUserAspect->get('id') ?: 0,
+                        'username' => $frontendUserAspect->get('username') ?: '',
+                    ],
+                    'imagesOnPage' => $this->collectImagesOnPage(),
+                    'documentSize' => $this->collectDocumentSize(),
+                ],
+            ]
+        );
+    }
+
+    /**
+     * Creates the content for the "info" section ("module") of the Admin Panel
+     *
+     * @param \TYPO3\CMS\Adminpanel\ModuleApi\ModuleData $data
+     * @return string HTML content for the section. Consists of a string with table-rows with four columns.
+     * @see display()
+     */
+    public function getContent(ModuleData $data): string
+    {
+        $view = GeneralUtility::makeInstance(StandaloneView::class);
+        $templateNameAndPath = 'EXT:adminpanel/Resources/Private/Templates/Modules/Info/General.html';
+        $view->setTemplatePathAndFilename(GeneralUtility::getFileAbsFileName($templateNameAndPath));
+        $view->setPartialRootPaths(['EXT:adminpanel/Resources/Private/Partials']);
+
+        $view->assignMultiple($data->getArrayCopy());
+
+        return $view->render();
+    }
+
+    /**
+     * Identifier for this Sub-module,
+     * for example "preview" or "cache"
+     *
+     * @return string
+     */
+    public function getIdentifier(): string
+    {
+        return 'info_general';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getLabel(): string
+    {
+        return $this->getLanguageService()->sL(
+            'LLL:EXT:adminpanel/Resources/Private/Language/locallang_info.xlf:sub.general.label'
+        );
+    }
+
+    /**
+     * Collects images from TypoScriptFrontendController and calculates the total size.
+     * Returns human readable image sizes for fluid template output
+     *
+     * @return array
+     */
+    protected function collectImagesOnPage(): array
+    {
+        $imagesOnPage = [
+            'files' => [],
+            'total' => 0,
+            'totalSize' => 0,
+            'totalSizeHuman' => GeneralUtility::formatSize(0),
+        ];
+
+        if ($this->isNoCacheEnabled() === false) {
+            return $imagesOnPage;
+        }
+
+        $count = 0;
+        $totalImageSize = 0;
+        if (!empty($this->getTypoScriptFrontendController()->imagesOnPage)) {
+            foreach ($this->getTypoScriptFrontendController()->imagesOnPage as $file) {
+                $fileSize = @filesize($file);
+                $imagesOnPage['files'][] = [
+                    'name' => $file,
+                    'size' => $fileSize,
+                    'sizeHuman' => GeneralUtility::formatSize($fileSize),
+                ];
+                $totalImageSize += $fileSize;
+                $count++;
+            }
+        }
+        $imagesOnPage['totalSize'] = GeneralUtility::formatSize($totalImageSize);
+        $imagesOnPage['total'] = $count;
+        return $imagesOnPage;
+    }
+
+    /**
+     * Gets the document size from the current page in a human readable format
+     *
+     * @return string
+     */
+    protected function collectDocumentSize(): string
+    {
+        $documentSize = 0;
+        if ($this->isNoCacheEnabled() === true) {
+            $documentSize = mb_strlen($this->getTypoScriptFrontendController()->content, 'UTF-8');
+        }
+
+        return GeneralUtility::formatSize($documentSize);
+    }
+
+    /**
+     * @return bool
+     */
+    protected function isNoCacheEnabled(): bool
+    {
+        return (bool)$this->getTypoScriptFrontendController()->no_cache;
+    }
+
+    /**
+     * @return TypoScriptFrontendController
+     */
+    protected function getTypoScriptFrontendController(): TypoScriptFrontendController
+    {
+        return $GLOBALS['TSFE'];
+    }
+
+    /**
+     * @return TimeTracker
+     */
+    protected function getTimeTracker(): TimeTracker
+    {
+        return GeneralUtility::makeInstance(TimeTracker::class);
+    }
+}

typo3/sysext/adminpanel/Classes/Modules/Info/PhpInformation.php

@@ -0,0 +1,84 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Modules\Info;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\AbstractSubModule;
+use TYPO3\CMS\Adminpanel\ModuleApi\DataProviderInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ModuleData;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Fluid\View\StandaloneView;
+
+/**
+ * PhpInformation admin panel sub module
+ *
+ * @internal
+ */
+class PhpInformation extends AbstractSubModule implements DataProviderInterface
+{
+    /**
+     * @inheritdoc
+     */
+    public function getIdentifier(): string
+    {
+        return 'info_php';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getLabel(): string
+    {
+        return $this->getLanguageService()->sL(
+            'LLL:EXT:adminpanel/Resources/Private/Language/locallang_info.xlf:sub.php.label'
+        );
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getDataToStore(ServerRequestInterface $request): ModuleData
+    {
+        return new ModuleData(
+            [
+                'general' => [
+                    'PHP_VERSION' => PHP_VERSION,
+                    'PHP_OS' => PHP_OS,
+                    'PHP_SAPI' => PHP_SAPI,
+                    'Peak Memory Usage' => GeneralUtility::formatSize(memory_get_peak_usage()),
+                ],
+                'loadedExtensions' => implode(', ', get_loaded_extensions()),
+                'constants' => get_defined_constants(true),
+            ]
+        );
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getContent(ModuleData $data): string
+    {
+        $view = GeneralUtility::makeInstance(StandaloneView::class);
+        $templateNameAndPath = 'EXT:adminpanel/Resources/Private/Templates/Modules/Info/PhpInfo.html';
+        $view->setTemplatePathAndFilename(GeneralUtility::getFileAbsFileName($templateNameAndPath));
+        $view->setPartialRootPaths(['EXT:adminpanel/Resources/Private/Partials']);
+
+        $view->assignMultiple($data->getArrayCopy());
+
+        return $view->render();
+    }
+}

typo3/sysext/adminpanel/Classes/Modules/Info/RequestInformation.php

@@ -0,0 +1,81 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Modules\Info;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\AbstractSubModule;
+use TYPO3\CMS\Adminpanel\ModuleApi\DataProviderInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ModuleData;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Fluid\View\StandaloneView;
+
+/**
+ * RequestInformation submodule of the admin panel
+ *
+ * @internal
+ */
+class RequestInformation extends AbstractSubModule implements DataProviderInterface
+{
+    /**
+     * @inheritdoc
+     */
+    public function getIdentifier(): string
+    {
+        return 'info-request';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getLabel(): string
+    {
+        return $this->getLanguageService()->sL(
+            'LLL:EXT:adminpanel/Resources/Private/Language/locallang_info.xlf:sub.request.label'
+        );
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getDataToStore(ServerRequestInterface $request): ModuleData
+    {
+        return new ModuleData(
+            [
+                'post' => $_POST,
+                'get' => $_GET,
+                'cookie' => $_COOKIE,
+                'session' => $_SESSION,
+                'server' => $_SERVER,
+            ]
+        );
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getContent(ModuleData $data): string
+    {
+        $view = GeneralUtility::makeInstance(StandaloneView::class);
+        $templateNameAndPath = 'EXT:adminpanel/Resources/Private/Templates/Modules/Info/RequestInformation.html';
+        $view->setTemplatePathAndFilename(GeneralUtility::getFileAbsFileName($templateNameAndPath));
+        $view->setPartialRootPaths(['EXT:adminpanel/Resources/Private/Partials']);
+
+        $view->assignMultiple($data->getArrayCopy());
+
+        return $view->render();
+    }
+}

typo3/sysext/adminpanel/Classes/Modules/InfoModule.php

@@ -0,0 +1,73 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Modules;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Adminpanel\ModuleApi\AbstractModule;
+use TYPO3\CMS\Adminpanel\ModuleApi\ShortInfoProviderInterface;
+use TYPO3\CMS\Core\TimeTracker\TimeTracker;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Admin Panel Info Module
+ */
+class InfoModule extends AbstractModule implements ShortInfoProviderInterface
+{
+    /**
+     * @inheritdoc
+     */
+    public function getIconIdentifier(): string
+    {
+        return 'actions-document-info';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getIdentifier(): string
+    {
+        return 'info';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getLabel(): string
+    {
+        return $this->getLanguageService()->sL(
+            'LLL:EXT:adminpanel/Resources/Private/Language/locallang_info.xlf:module.label'
+        );
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getShortInfo(): string
+    {
+        $parseTime = $this->getTimeTracker()->getParseTime();
+        return sprintf($this->getLanguageService()->sL(
+            'LLL:EXT:adminpanel/Resources/Private/Language/locallang_info.xlf:module.shortinfo'
+        ), $parseTime);
+    }
+
+    /**
+     * @return TimeTracker
+     */
+    protected function getTimeTracker(): TimeTracker
+    {
+        return GeneralUtility::makeInstance(TimeTracker::class);
+    }
+}

typo3/sysext/adminpanel/Classes/Modules/PreviewModule.php

@@ -0,0 +1,257 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Modules;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\AbstractModule;
+use TYPO3\CMS\Adminpanel\ModuleApi\InitializableInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\PageSettingsProviderInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ResourceProviderInterface;
+use TYPO3\CMS\Adminpanel\Repositories\FrontendGroupsRepository;
+use TYPO3\CMS\Core\Context\Context;
+use TYPO3\CMS\Core\Context\DateTimeAspect;
+use TYPO3\CMS\Core\Context\UserAspect;
+use TYPO3\CMS\Core\Context\VisibilityAspect;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Fluid\View\StandaloneView;
+use TYPO3\CMS\Frontend\Authentication\FrontendUserAuthentication;
+use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
+
+/**
+ * Admin Panel Preview Module
+ */
+class PreviewModule extends AbstractModule implements InitializableInterface, PageSettingsProviderInterface, ResourceProviderInterface
+{
+    /**
+     * module configuration, set on initialize
+     *
+     * @var array
+     */
+    protected $config;
+
+    /**
+     * @inheritdoc
+     */
+    public function getIconIdentifier(): string
+    {
+        return 'actions-preview';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getIdentifier(): string
+    {
+        return 'preview';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getLabel(): string
+    {
+        return $this->getLanguageService()->sL(
+            'LLL:EXT:adminpanel/Resources/Private/Language/locallang_preview.xlf:module.label'
+        );
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function initializeModule(ServerRequestInterface $request): void
+    {
+        // Backend preview params (ADMCMD_) take precedence over configured admin panel values
+        $simulateGroupByRequest = (int)($request->getQueryParams()['ADMCMD_simUser'] ?? 0);
+        $simulateTimeByRequest = (int)($request->getQueryParams()['ADMCMD_simTime'] ?? 0);
+        $this->config = [
+            'showHiddenPages' => (bool)$this->getConfigOptionForModule('showHiddenPages'),
+            'simulateDate' => $simulateTimeByRequest ?: (int)$this->getConfigOptionForModule('simulateDate'),
+            'showHiddenRecords' => (bool)$this->getConfigOptionForModule('showHiddenRecords'),
+            'simulateUserGroup' => $simulateGroupByRequest ?: (int)$this->getConfigOptionForModule('simulateUserGroup'),
+            'showFluidDebug' => (bool)$this->getConfigOptionForModule('showFluidDebug'),
+        ];
+        if ($this->config['showFluidDebug']) {
+            // forcibly unset fluid caching as it does not care about the tsfe based caching settings
+            unset($GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['fluid_template']['frontend']);
+            $GLOBALS['TSFE']->set_no_cache('Cache is disabled if fluid debugging is enabled', true);
+        }
+        $this->initializeFrontendPreview(
+            $this->config['showHiddenPages'],
+            $this->config['showHiddenRecords'],
+            $this->config['simulateDate'],
+            $this->config['simulateUserGroup']
+        );
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getPageSettings(): string
+    {
+        $view = GeneralUtility::makeInstance(StandaloneView::class);
+        $templateNameAndPath = 'EXT:adminpanel/Resources/Private/Templates/Modules/Settings/Preview.html';
+        $view->setTemplatePathAndFilename(GeneralUtility::getFileAbsFileName($templateNameAndPath));
+        $view->setPartialRootPaths(['EXT:adminpanel/Resources/Private/Partials']);
+
+        $frontendGroupsRepository = GeneralUtility::makeInstance(FrontendGroupsRepository::class);
+
+        $view->assignMultiple(
+            [
+                'show' => [
+                    'pageId' => (int)$this->getTypoScriptFrontendController()->id,
+                    'hiddenPages' => $this->config['showHiddenPages'],
+                    'hiddenRecords' => $this->config['showHiddenRecords'],
+                    'fluidDebug' => $this->config['showFluidDebug'],
+                ],
+                'simulateDate' => $this->config['simulateDate'],
+                'frontendUserGroups' => [
+                    'availableGroups' => $frontendGroupsRepository->getAvailableFrontendUserGroups(),
+                    'selected' => (int)$this->config['simulateUserGroup'],
+                ],
+            ]
+        );
+        return $view->render();
+    }
+
+    /**
+     * @param string $option
+     * @return string
+     */
+    protected function getConfigOptionForModule(string $option): string
+    {
+        return $this->configurationService->getConfigurationOption(
+            'preview',
+            $option
+        );
+    }
+
+    /**
+     * @return TypoScriptFrontendController
+     */
+    protected function getTypoScriptFrontendController(): TypoScriptFrontendController
+    {
+        return $GLOBALS['TSFE'];
+    }
+
+    /**
+     * Initialize frontend preview functionality incl.
+     * simulation of users or time
+     *
+     * @param bool $showHiddenPages
+     * @param bool $showHiddenRecords
+     * @param int $simulateDate
+     * @param int $simulateUserGroup UID of the fe_group to simulate
+     * @throws \Exception
+     */
+    protected function initializeFrontendPreview(
+        bool $showHiddenPages,
+        bool $showHiddenRecords,
+        int $simulateDate,
+        int $simulateUserGroup
+    ): void {
+        $context = GeneralUtility::makeInstance(Context::class);
+        $typoScriptFrontendController = $this->getTypoScriptFrontendController();
+        $typoScriptFrontendController->clear_preview();
+        $typoScriptFrontendController->fePreview = 1;
+
+        // Modify visibility settings (hidden pages + hidden content)
+        $context->setAspect(
+            'visibility',
+            GeneralUtility::makeInstance(VisibilityAspect::class, $showHiddenPages, $showHiddenRecords)
+        );
+
+        // Simulate date
+        $simTime = null;
+        if ($simulateDate) {
+            $simTime = $this->parseDate($simulateDate);
+            if ($simTime) {
+                $GLOBALS['SIM_EXEC_TIME'] = $simTime;
+                $GLOBALS['SIM_ACCESS_TIME'] = $simTime - $simTime % 60;
+                $context->setAspect(
+                    'date',
+                    GeneralUtility::makeInstance(
+                        DateTimeAspect::class,
+                        new \DateTimeImmutable('@' . $GLOBALS['SIM_EXEC_TIME'])
+                    )
+                );
+            }
+        }
+        // simulate usergroup
+        if ($simulateUserGroup) {
+            $typoScriptFrontendController->simUserGroup = $simulateUserGroup;
+            if (!$typoScriptFrontendController->fe_user instanceof FrontendUserAuthentication) {
+                $typoScriptFrontendController->fe_user = GeneralUtility::makeInstance(
+                    FrontendUserAuthentication::class
+                );
+            }
+            if (!is_array($typoScriptFrontendController->fe_user->user)) {
+                // This can be removed once #90989 is fixed
+                $typoScriptFrontendController->fe_user->user = ['uid' => PHP_INT_MAX];
+            }
+            $typoScriptFrontendController->fe_user->user[$typoScriptFrontendController->fe_user->usergroup_column] = $simulateUserGroup;
+            $context->setAspect(
+                'frontend.user',
+                GeneralUtility::makeInstance(
+                    UserAspect::class,
+                    $typoScriptFrontendController->fe_user ?: null,
+                    [$simulateUserGroup]
+                )
+            );
+        }
+        if (!$simulateUserGroup && !$simTime && !$showHiddenPages && !$showHiddenRecords) {
+            $typoScriptFrontendController->fePreview = 0;
+        }
+    }
+
+    /**
+     * @return array
+     */
+    public function getJavaScriptFiles(): array
+    {
+        return ['EXT:adminpanel/Resources/Public/JavaScript/Modules/Preview.js'];
+    }
+
+    /**
+     * The simulated date needs to be a timestring (UTC)
+     *
+     * Simulation date is either set via configuration of AdminPanel (Date and Time Fields) or via ADMCMD_ $_GET
+     * parameter from backend previews
+     *
+     * @param int $simulateDate
+     * @return int
+     */
+    protected function parseDate(int $simulateDate): ?int
+    {
+        try {
+            $simTime = (new \DateTime('@' . $simulateDate))->getTimestamp();
+            $simTime = max($simTime, 60);
+        } catch (\Exception $e) {
+            $simTime = null;
+        }
+        return $simTime;
+    }
+
+    /**
+     * Returns a string array with css files that will be rendered after the module
+     *
+     * @return array
+     */
+    public function getCssFiles(): array
+    {
+        return [];
+    }
+}

typo3/sysext/adminpanel/Classes/Modules/TsDebug/TypoScriptWaterfall.php

@@ -0,0 +1,193 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Modules\TsDebug;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\AbstractSubModule;
+use TYPO3\CMS\Adminpanel\ModuleApi\InitializableInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ModuleData;
+use TYPO3\CMS\Adminpanel\ModuleApi\ModuleSettingsProviderInterface;
+use TYPO3\CMS\Adminpanel\Service\ConfigurationService;
+use TYPO3\CMS\Backend\FrontendBackendUserAuthentication;
+use TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
+use TYPO3\CMS\Core\TimeTracker\TimeTracker;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Fluid\View\StandaloneView;
+use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
+
+/**
+ * Class TypoScriptWaterfall
+ *
+ * @internal
+ */
+class TypoScriptWaterfall extends AbstractSubModule implements InitializableInterface, ModuleSettingsProviderInterface
+{
+    /**
+     * @var ConfigurationService
+     */
+    protected $configurationService;
+
+    public function __construct()
+    {
+        $this->configurationService = GeneralUtility::makeInstance(ConfigurationService::class);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getIdentifier(): string
+    {
+        return 'typoscript-waterfall';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getLabel(): string
+    {
+        return $this->getLanguageService()->sL(
+            'LLL:EXT:adminpanel/Resources/Private/Language/locallang_tsdebug.xlf:sub.waterfall.label'
+        );
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function initializeModule(ServerRequestInterface $request): void
+    {
+        $typoScriptFrontend = $this->getTypoScriptFrontendController();
+        $typoScriptFrontend->forceTemplateParsing = $this->getConfigurationOption(
+            'forceTemplateParsing'
+        );
+        if ($typoScriptFrontend->forceTemplateParsing) {
+            $typoScriptFrontend->set_no_cache('Admin Panel: Force template parsing', true);
+        }
+        $this->getTimeTracker()->LR = (bool)$this->getConfigurationOption('LR');
+    }
+
+    /**
+     * Creates the content for the "tsdebug" section ("module") of the Admin Panel
+     *
+     * @param ModuleData $data
+     * @return string HTML
+     */
+    public function getContent(ModuleData $data): string
+    {
+        $view = GeneralUtility::makeInstance(StandaloneView::class);
+        $templateNameAndPath = 'EXT:adminpanel/Resources/Private/Templates/Modules/TsDebug/TypoScript.html';
+        $view->setTemplatePathAndFilename(GeneralUtility::getFileAbsFileName($templateNameAndPath));
+        $view->setPartialRootPaths(['EXT:adminpanel/Resources/Private/Partials']);
+
+        $view->assignMultiple(
+            [
+                'tree' => (int)$this->getConfigurationOption('tree'),
+                'display' => [
+                    'times' => (int)$this->getConfigurationOption('displayTimes'),
+                    'messages' => (int)$this->getConfigurationOption('displayMessages'),
+                    'content' => (int)$this->getConfigurationOption('displayContent'),
+                ],
+                'trackContentRendering' => (int)$this->getConfigurationOption('LR'),
+                'forceTemplateParsing' => (int)$this->getConfigurationOption('forceTemplateParsing'),
+                'typoScriptLog' => $this->renderTypoScriptLog(),
+            ]
+        );
+
+        return $view->render();
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getSettings(): string
+    {
+        $view = GeneralUtility::makeInstance(StandaloneView::class);
+        $templateNameAndPath = 'EXT:adminpanel/Resources/Private/Templates/Modules/TsDebug/TypoScriptSettings.html';
+        $view->setTemplatePathAndFilename(GeneralUtility::getFileAbsFileName($templateNameAndPath));
+        $view->setPartialRootPaths(['EXT:adminpanel/Resources/Private/Partials']);
+
+        $view->assignMultiple(
+            [
+                'tree' => (int)$this->getConfigurationOption('tree'),
+                'display' => [
+                    'times' => (int)$this->getConfigurationOption('displayTimes'),
+                    'messages' => (int)$this->getConfigurationOption('displayMessages'),
+                    'content' => (int)$this->getConfigurationOption('displayContent'),
+                ],
+                'trackContentRendering' => (int)$this->getConfigurationOption('LR'),
+                'forceTemplateParsing' => (int)$this->getConfigurationOption('forceTemplateParsing')
+            ]
+        );
+
+        return $view->render();
+    }
+
+    /**
+     * Returns the current BE user.
+     *
+     * @return BackendUserAuthentication|FrontendBackendUserAuthentication
+     */
+    protected function getBackendUser(): BackendUserAuthentication
+    {
+        return $GLOBALS['BE_USER'];
+    }
+
+    /**
+     * @param string $option
+     * @return bool
+     */
+    protected function getConfigurationOption(string $option): bool
+    {
+        return (bool)$this->configurationService->getConfigurationOption('tsdebug', $option);
+    }
+
+    /**
+     * Renders the TypoScript log as string
+     *
+     * @return string
+     */
+    protected function renderTypoScriptLog(): string
+    {
+        $timeTracker = $this->getTimeTracker();
+        $timeTracker->printConf['flag_tree'] = $this->getConfigurationOption('tree');
+        $timeTracker->printConf['allTime'] = $this->getConfigurationOption(
+            'displayTimes'
+        );
+        $timeTracker->printConf['flag_messages'] = $this->getConfigurationOption(
+            'displayMessages'
+        );
+        $timeTracker->printConf['flag_content'] = $this->getConfigurationOption(
+            'displayContent'
+        );
+        return $timeTracker->printTSlog();
+    }
+
+    /**
+     * @return TimeTracker
+     */
+    protected function getTimeTracker(): TimeTracker
+    {
+        return GeneralUtility::makeInstance(TimeTracker::class);
+    }
+
+    /**
+     * @return TypoScriptFrontendController
+     */
+    protected function getTypoScriptFrontendController(): TypoScriptFrontendController
+    {
+        return $GLOBALS['TSFE'];
+    }
+}

typo3/sysext/adminpanel/Classes/Modules/TsDebugModule.php

@@ -0,0 +1,79 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Modules;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Adminpanel\ModuleApi\AbstractModule;
+use TYPO3\CMS\Adminpanel\ModuleApi\ShortInfoProviderInterface;
+use TYPO3\CMS\Core\TimeTracker\TimeTracker;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Admin Panel TypoScript Debug Module
+ */
+class TsDebugModule extends AbstractModule implements ShortInfoProviderInterface
+{
+    /**
+     * @inheritdoc
+     */
+    public function getIdentifier(): string
+    {
+        return 'tsdebug';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getIconIdentifier(): string
+    {
+        return 'mimetypes-x-content-template-static';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getLabel(): string
+    {
+        return $this->getLanguageService()->sL(
+            'LLL:EXT:adminpanel/Resources/Private/Language/locallang_tsdebug.xlf:module.label'
+        );
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getShortInfo(): string
+    {
+        $messageCount = 0;
+        foreach ($this->getTimeTracker()->tsStackLog as $log) {
+            $messageCount += count($log['message'] ?? []);
+        }
+        return sprintf(
+            $this->getLanguageService()->sL(
+                'LLL:EXT:adminpanel/Resources/Private/Language/locallang_tsdebug.xlf:module.shortinfo'
+            ),
+            $messageCount
+        );
+    }
+
+    /**
+     * @return TimeTracker
+     */
+    protected function getTimeTracker(): TimeTracker
+    {
+        return GeneralUtility::makeInstance(TimeTracker::class);
+    }
+}

typo3/sysext/adminpanel/Classes/Repositories/FrontendGroupsRepository.php

@@ -0,0 +1,121 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Repositories;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Backend\FrontendBackendUserAuthentication;
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\Database\Query\Restriction\DeletedRestriction;
+use TYPO3\CMS\Core\Type\Bitmask\Permission;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Admin Panel Frontend Groups Repository
+ *
+ * @internal
+ */
+class FrontendGroupsRepository
+{
+    /**
+     * returns an array of all available frontend user groups including hidden ones.
+     *
+     * @return array
+     */
+    public function getAvailableFrontendUserGroups(): array
+    {
+        $optionCount = $this->getUserGroupOptionCountByBackendUser($this->getBackendUser());
+
+        $frontendGroups = [];
+        if ($optionCount > 0) {
+            $frontendGroups = $this->getUserGroupsForPagesByBackendUser($this->getBackendUser());
+        }
+
+        return $frontendGroups;
+    }
+
+    /**
+     * fetches the amount of user groups
+     *
+     * @param FrontendBackendUserAuthentication $beUser
+     * @return int
+     */
+    protected function getUserGroupOptionCountByBackendUser(FrontendBackendUserAuthentication $beUser): int
+    {
+        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)
+            ->getQueryBuilderForTable('fe_groups');
+
+        $queryBuilder->getRestrictions()
+            ->removeAll()
+            ->add(GeneralUtility::makeInstance(DeletedRestriction::class));
+
+        $optionCount = $queryBuilder->count('fe_groups.uid')
+            ->from('fe_groups', 'fe_groups')
+            ->innerJoin(
+                'fe_groups',
+                'pages',
+                'pages',
+                $queryBuilder->expr()->eq('pages.uid', $queryBuilder->quoteIdentifier('fe_groups.pid'))
+            )
+            ->where(
+                $beUser->getPagePermsClause(Permission::PAGE_SHOW)
+            )
+            ->execute()
+            ->fetchColumn(0);
+
+        return (int)$optionCount;
+    }
+
+    /**
+     * fetches all frontend user groups, except deleted, for pages
+     *
+     * @param FrontendBackendUserAuthentication $beUser
+     * @return array
+     */
+    protected function getUserGroupsForPagesByBackendUser(FrontendBackendUserAuthentication $beUser): array
+    {
+        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)
+            ->getQueryBuilderForTable('fe_groups');
+
+        $queryBuilder->getRestrictions()
+            ->removeAll()
+            ->add(GeneralUtility::makeInstance(DeletedRestriction::class));
+
+        return $queryBuilder->select('fe_groups.uid', 'fe_groups.title')
+            ->from('fe_groups')
+            ->innerJoin(
+                'fe_groups',
+                'pages',
+                'pages',
+                $queryBuilder->expr()->eq('pages.uid', $queryBuilder->quoteIdentifier('fe_groups.pid'))
+            )
+            ->where(
+                $beUser->getPagePermsClause(Permission::PAGE_SHOW)
+            )
+            ->orderBy('fe_groups.title')
+            ->execute()
+            ->fetchAll();
+    }
+
+    /**
+     * Returns the current BE user.
+     *
+     * @return FrontendBackendUserAuthentication
+     */
+    protected function getBackendUser(): FrontendBackendUserAuthentication
+    {
+        return $GLOBALS['BE_USER'];
+    }
+}

typo3/sysext/adminpanel/Classes/Service/ConfigurationService.php

@@ -0,0 +1,136 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Service;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ConfigurableInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\OnSubmitActorInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\SubmoduleProviderInterface;
+use TYPO3\CMS\Backend\FrontendBackendUserAuthentication;
+use TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
+use TYPO3\CMS\Core\SingletonInterface;
+
+/**
+ * Admin Panel Service Class for Configuration Handling
+ *
+ * Scope: User TSConfig + Backend User UC
+ */
+class ConfigurationService implements SingletonInterface
+{
+    /**
+     * @var array
+     */
+    protected $mainConfiguration;
+
+    public function __construct()
+    {
+        $this->mainConfiguration = $this->getBackendUser()->getTSConfig()['admPanel.'] ?? [];
+    }
+
+    /**
+     * Get MainConfiguration (User TSConfig admPanel)
+     *
+     * @return array
+     */
+    public function getMainConfiguration(): array
+    {
+        return $this->mainConfiguration;
+    }
+
+    /**
+     * Helper method to return configuration options
+     * Checks User TSConfig overrides and current backend user session
+     *
+     * @param string $identifier
+     * @param string $option
+     * @return string
+     */
+    public function getConfigurationOption(string $identifier, string $option): string
+    {
+        if ($identifier === '' || $option === '') {
+            throw new \InvalidArgumentException('Identifier and option may not be empty', 1532861423);
+        }
+
+        if (isset($this->mainConfiguration['override.'][$identifier . '.'][$option])) {
+            $returnValue = $this->mainConfiguration['override.'][$identifier . '.'][$option];
+        } else {
+            $returnValue = $this->getBackendUser()->uc['AdminPanel'][$identifier . '_' . $option] ?? '';
+        }
+
+        return (string)$returnValue;
+    }
+
+    /**
+     * Save admin panel configuration to backend user UC
+     * triggers onSubmit method of modules to enable each module
+     * to enhance the save action
+     *
+     * @param \TYPO3\CMS\Adminpanel\ModuleApi\ModuleInterface[] $modules
+     * @param ServerRequestInterface $request
+     */
+    public function saveConfiguration(array $modules, ServerRequestInterface $request): void
+    {
+        $configurationToSave = $request->getParsedBody()['TSFE_ADMIN_PANEL'] ?? [];
+        $beUser = $this->getBackendUser();
+        $this->triggerOnSubmitActors($modules, $request, $configurationToSave);
+
+        $existingConfiguration = $beUser->uc['AdminPanel'] ?? [];
+        $existingConfiguration = is_array($existingConfiguration) ? $existingConfiguration : [];
+
+        // Settings
+        $beUser->uc['AdminPanel'] = array_merge($existingConfiguration, $configurationToSave);
+        unset($beUser->uc['AdminPanel']['action']);
+        // Saving
+        $beUser->writeUC();
+    }
+
+    /**
+     * Returns the current BE user.
+     *
+     * @return BackendUserAuthentication|FrontendBackendUserAuthentication
+     */
+    protected function getBackendUser(): BackendUserAuthentication
+    {
+        return $GLOBALS['BE_USER'];
+    }
+
+    /**
+     * @param array $modules
+     * @param \Psr\Http\Message\ServerRequestInterface $request
+     * @param $configurationToSave
+     */
+    protected function triggerOnSubmitActors(
+        array $modules,
+        ServerRequestInterface $request,
+        $configurationToSave
+    ): void {
+        foreach ($modules as $module) {
+            if (
+                $module instanceof OnSubmitActorInterface
+                && (
+                    ($module instanceof ConfigurableInterface && $module->isEnabled())
+                    || !($module instanceof ConfigurableInterface)
+                )
+             ) {
+                $module->onSubmit($configurationToSave, $request);
+            }
+            if ($module instanceof SubmoduleProviderInterface) {
+                $this->triggerOnSubmitActors($module->getSubModules(), $request, $configurationToSave);
+            }
+        }
+    }
+}

typo3/sysext/adminpanel/Classes/Service/EditToolbarService.php

@@ -0,0 +1,282 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Service;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Backend\FrontendBackendUserAuthentication;
+use TYPO3\CMS\Backend\Routing\UriBuilder;
+use TYPO3\CMS\Backend\Utility\BackendUtility;
+use TYPO3\CMS\Core\Context\Context;
+use TYPO3\CMS\Core\Context\LanguageAspect;
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\Database\Query\Restriction\FrontendRestrictionContainer;
+use TYPO3\CMS\Core\Imaging\Icon;
+use TYPO3\CMS\Core\Imaging\IconFactory;
+use TYPO3\CMS\Core\Localization\LanguageService;
+use TYPO3\CMS\Core\Type\Bitmask\Permission;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
+
+/**
+ * Class for the Edit Toolbar
+ *
+ * @internal
+ */
+class EditToolbarService
+{
+
+    /**
+     * Creates the tool bar links for the "edit" section of the Admin Panel.
+     *
+     * @return string A string containing images wrapped in <a>-tags linking them to proper functions.
+     */
+    public function createToolbar(): string
+    {
+        /** @var LanguageAspect $languageAspect */
+        $languageAspect = GeneralUtility::makeInstance(Context::class)->getAspect('language');
+        $iconFactory = GeneralUtility::makeInstance(IconFactory::class);
+        $tsfe = $this->getTypoScriptFrontendController();
+        //  If mod.newContentElementWizard.override is set, use that extension's create new content wizard instead:
+        $moduleName = BackendUtility::getPagesTSconfig($tsfe->page['uid'])['mod.']['newContentElementWizard.']['override'] ?? 'new_content_element';
+        $uriBuilder = GeneralUtility::makeInstance(UriBuilder::class);
+        $perms = $this->getBackendUser()->calcPerms($tsfe->page);
+        $langAllowed = $this->getBackendUser()->checkLanguageAccess($languageAspect->getId());
+        $id = $tsfe->id;
+        $returnUrl = GeneralUtility::getIndpEnv('REQUEST_URI');
+        $classes = 'typo3-adminPanel-btn typo3-adminPanel-btn-default';
+        $output = [];
+        $output[] = '<div class="typo3-adminPanel-form-group">';
+        $output[] = '  <div class="typo3-adminPanel-btn-group" role="group">';
+
+        // History
+        $link = (string)$uriBuilder->buildUriFromRoute(
+            'record_history',
+            [
+                'element' => 'pages:' . $id,
+                'returnUrl' => $returnUrl,
+            ]
+        );
+        $title = $this->getLabel('edit_recordHistory');
+        $output[] = '<a class="' .
+                    $classes .
+                    '" href="' .
+                    htmlspecialchars($link, ENT_QUOTES | ENT_HTML5) .
+                    '#latest" title="' .
+                    $title .
+                    '">';
+        $output[] = '  ' . $iconFactory->getIcon('actions-document-history-open', Icon::SIZE_SMALL)->render();
+        $output[] = '</a>';
+
+        // New Content
+        if ($perms & Permission::CONTENT_EDIT && $langAllowed) {
+            $linkParameters = [
+                'id' => $id,
+                'returnUrl' => $returnUrl,
+            ];
+            if (!empty($languageAspect->getId())) {
+                $linkParameters['sys_language_uid'] = $languageAspect->getId();
+            }
+            $link = (string)$uriBuilder->buildUriFromRoute($moduleName, $linkParameters);
+            $icon = $iconFactory->getIcon('actions-add', Icon::SIZE_SMALL)->render();
+            $title = $this->getLabel('edit_newContentElement');
+            $output[] = '<a class="' .
+                        $classes .
+                        '" href="' .
+                        htmlspecialchars($link, ENT_QUOTES | ENT_HTML5) .
+                        '" title="' .
+                        $title .
+                        '">';
+            $output[] = '  ' . $icon;
+            $output[] = '</a>';
+        }
+
+        // Move Page
+        if ($perms & Permission::PAGE_EDIT) {
+            $link = (string)$uriBuilder->buildUriFromRoute(
+                'move_element',
+                [
+                    'table' => 'pages',
+                    'uid' => $id,
+                    'returnUrl' => $returnUrl,
+                ]
+            );
+            $icon = $iconFactory->getIcon('actions-document-move', Icon::SIZE_SMALL)->render();
+            $title = $this->getLabel('edit_move_page');
+            $output[] = '<a class="' .
+                        $classes .
+                        '" href="' .
+                        htmlspecialchars($link, ENT_QUOTES | ENT_HTML5) .
+                        '" title="' .
+                        $title .
+                        '">';
+            $output[] = '  ' . $icon;
+            $output[] = '</a>';
+        }
+
+        // New Page
+        if ($perms & Permission::PAGE_NEW) {
+            $link = (string)$uriBuilder->buildUriFromRoute(
+                'db_new',
+                [
+                    'id' => $id,
+                    'pagesOnly' => 1,
+                    'returnUrl' => $returnUrl,
+                ]
+            );
+            $icon = $iconFactory->getIcon('actions-page-new', Icon::SIZE_SMALL)->render();
+            $title = $this->getLabel('edit_newPage');
+            $output[] = '<a class="' .
+                        $classes .
+                        '" href="' .
+                        htmlspecialchars($link, ENT_QUOTES | ENT_HTML5) .
+                        '" title="' .
+                        $title .
+                        '">';
+            $output[] = '  ' . $icon;
+            $output[] = '</a>';
+        }
+
+        // Edit Page
+        if ($perms & Permission::PAGE_EDIT) {
+            $link = (string)$uriBuilder->buildUriFromRoute(
+                'record_edit',
+                [
+                    'edit[pages][' . $id . ']' => 'edit',
+                    'noView' => 1,
+                    'returnUrl' => $returnUrl,
+                ]
+            );
+            $icon = $iconFactory->getIcon('actions-page-open', Icon::SIZE_SMALL)->render();
+            $title = $this->getLabel('edit_editPageProperties');
+            $output[] = '<a class="' .
+                        $classes .
+                        '" href="' .
+                        htmlspecialchars($link, ENT_QUOTES | ENT_HTML5) .
+                        '" title="' .
+                        $title .
+                        '">';
+            $output[] = '  ' . $icon;
+            $output[] = '</a>';
+        }
+
+        // Edit Page Overlay
+        if ($perms & Permission::PAGE_EDIT && $languageAspect->getId() > 0 && $langAllowed) {
+            $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)
+                ->getQueryBuilderForTable('pages');
+            $queryBuilder->setRestrictions(GeneralUtility::makeInstance(FrontendRestrictionContainer::class));
+            $row = $queryBuilder
+                ->select('uid', 'pid', 't3ver_state')
+                ->from('pages')
+                ->where(
+                    $queryBuilder->expr()->eq(
+                        $GLOBALS['TCA']['pages']['ctrl']['transOrigPointerField'],
+                        $queryBuilder->createNamedParameter($id, \PDO::PARAM_INT)
+                    ),
+                    $queryBuilder->expr()->eq(
+                        $GLOBALS['TCA']['pages']['ctrl']['languageField'],
+                        $queryBuilder->createNamedParameter($languageAspect->getId(), \PDO::PARAM_INT)
+                    )
+                )
+                ->setMaxResults(1)
+                ->execute()
+                ->fetch();
+            $tsfe->sys_page->versionOL('pages', $row);
+            if (is_array($row)) {
+                $link = (string)$uriBuilder->buildUriFromRoute(
+                    'record_edit',
+                    [
+                        'edit[pages][' . $row['uid'] . ']' => 'edit',
+                        'noView' => 1,
+                        'returnUrl' => $returnUrl,
+                    ]
+                );
+                $icon = $iconFactory->getIcon('mimetypes-x-content-page-language-overlay', Icon::SIZE_SMALL)
+                    ->render();
+                $title = $this->getLabel('edit_editPageOverlay');
+                $output[] = '<a class="' .
+                            $classes .
+                            '" href="' .
+                            htmlspecialchars($link, ENT_QUOTES | ENT_HTML5) .
+                            '" title="' .
+                            $title .
+                            '">';
+                $output[] = '  ' . $icon;
+                $output[] = '</a>';
+            }
+        }
+
+        // Open list view
+        if ($this->getBackendUser()->check('modules', 'web_list')) {
+            $link = (string)$uriBuilder->buildUriFromRoute(
+                'web_list',
+                [
+                    'id' => $id,
+                    'returnUrl' => GeneralUtility::getIndpEnv('REQUEST_URI'),
+                ]
+            );
+            $icon = $iconFactory->getIcon('actions-system-list-open', Icon::SIZE_SMALL)->render();
+            $title = $this->getLabel('edit_db_list');
+            $output[] = '<a class="' .
+                        $classes .
+                        '" href="' .
+                        htmlspecialchars($link, ENT_QUOTES | ENT_HTML5) .
+                        '" title="' .
+                        $title .
+                        '">';
+            $output[] = '  ' . $icon;
+            $output[] = '</a>';
+        }
+
+        $output[] = '  </div>';
+        $output[] = '</div>';
+        return implode('', $output);
+    }
+
+    /**
+     * Translate given key
+     *
+     * @param string $key Key for a label in the $LOCAL_LANG array of "sysext/core/Resources/Private/Language/locallang_tsfe.xlf
+     * @return string The value for the $key
+     */
+    protected function getLabel($key): ?string
+    {
+        return htmlspecialchars($this->getLanguageService()->getLL($key), ENT_QUOTES | ENT_HTML5);
+    }
+
+    /**
+     * @return FrontendBackendUserAuthentication
+     */
+    protected function getBackendUser(): FrontendBackendUserAuthentication
+    {
+        return $GLOBALS['BE_USER'];
+    }
+
+    /**
+     * @return LanguageService
+     */
+    protected function getLanguageService(): LanguageService
+    {
+        return $GLOBALS['LANG'];
+    }
+
+    /**
+     * @return TypoScriptFrontendController
+     */
+    protected function getTypoScriptFrontendController(): TypoScriptFrontendController
+    {
+        return $GLOBALS['TSFE'];
+    }
+}

typo3/sysext/adminpanel/Classes/Service/ModuleLoader.php

@@ -0,0 +1,96 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Service;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Adminpanel\Exceptions\InvalidConfigurationException;
+use TYPO3\CMS\Adminpanel\ModuleApi\ConfigurableInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ModuleInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\SubmoduleProviderInterface;
+use TYPO3\CMS\Core\Service\DependencyOrderingService;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Admin Panel Module Loader
+ *
+ * @internal
+ */
+class ModuleLoader
+{
+
+    /**
+     * Validates, sorts and initiates the registered modules
+     *
+     * @param array $modules
+     * @return \TYPO3\CMS\Adminpanel\ModuleApi\ModuleInterface[]
+     * @throws \RuntimeException
+     */
+    public function validateSortAndInitializeModules(array $modules): array
+    {
+        if (empty($modules)) {
+            return [];
+        }
+        foreach ($modules as $identifier => $configuration) {
+            if (empty($configuration) || !is_array($configuration)) {
+                throw new InvalidConfigurationException(
+                    'Missing configuration for module "' . $identifier . '".',
+                    1519490105
+                );
+            }
+            if (!is_string($configuration['module']) ||
+                empty($configuration['module']) ||
+                !class_exists($configuration['module']) ||
+                !is_subclass_of(
+                    $configuration['module'],
+                    ModuleInterface::class,
+                    true
+                )
+            ) {
+                throw new InvalidConfigurationException(
+                    'The module "' .
+                    $identifier .
+                    '" defines an invalid module class. Ensure the class exists and implements the "' .
+                    ModuleInterface::class .
+                    '".',
+                    1519490112
+                );
+            }
+        }
+
+        $orderedModules = GeneralUtility::makeInstance(DependencyOrderingService::class)->orderByDependencies(
+            $modules
+        );
+
+        $moduleInstances = [];
+        foreach ($orderedModules as $moduleConfiguration) {
+            $module = GeneralUtility::makeInstance($moduleConfiguration['module']);
+            if (
+                $module instanceof ModuleInterface
+                && (
+                    ($module instanceof ConfigurableInterface && $module->isEnabled())
+                    || !($module instanceof ConfigurableInterface)
+                )
+            ) {
+                $moduleInstances[$module->getIdentifier()] = $module;
+            }
+            if ($module instanceof SubmoduleProviderInterface) {
+                $subModuleInstances = $this->validateSortAndInitializeModules($moduleConfiguration['submodules'] ?? []);
+                $module->setSubModules($subModuleInstances);
+            }
+        }
+        return $moduleInstances;
+    }
+}

typo3/sysext/adminpanel/Classes/Utility/MemoryUtility.php

@@ -0,0 +1,46 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Utility;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Helper class to keep track of memory consumption in loggers to reduce risk of running out of memory
+ *
+ * @internal
+ */
+class MemoryUtility
+{
+    private const MINIMAL_PERCENT_OF_FREE_MEMORY = 0.30;
+
+    /**
+     * Checks memory usage used in current process - this is no guarantee for not running out of memory
+     * but should prevent memory exhaustion due to the admin panel in most cases.
+     * The loggers will stop logging once the amount of free memory falls below the threshold (see
+     * MINIMAL_PERCENT_OF_FREE_MEMORY const).
+     *
+     * @return bool
+     */
+    public static function isMemoryConsumptionTooHigh(): bool
+    {
+        $iniLimit = ini_get('memory_limit');
+        $memoryLimit = $iniLimit === '-1' ? -1 : GeneralUtility::getBytesFromSizeMeasurement($iniLimit);
+        $freeMemory = $memoryLimit - memory_get_usage(true);
+
+        return $memoryLimit > 0 && $freeMemory < (self::MINIMAL_PERCENT_OF_FREE_MEMORY * $memoryLimit);
+    }
+}

typo3/sysext/adminpanel/Classes/Utility/ResourceUtility.php

@@ -0,0 +1,140 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Utility;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Adminpanel\ModuleApi\ResourceProviderInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\SubmoduleProviderInterface;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Core\Utility\PathUtility;
+
+class ResourceUtility
+{
+    /**
+     * Get additional resources (css, js) from modules and merge it to
+     * one array - returns an array of full html tags
+     *
+     * @param \TYPO3\CMS\Adminpanel\ModuleApi\ResourceProviderInterface[] $modules
+     * @return array
+     */
+    public static function getAdditionalResourcesForModules(array $modules): array
+    {
+        $result = [
+            'js' => '',
+            'css' => '',
+        ];
+        foreach ($modules as $module) {
+            if ($module instanceof ResourceProviderInterface) {
+                foreach ($module->getJavaScriptFiles() as $file) {
+                    $result['js'] .= static::getJsTag($file);
+                }
+                foreach ($module->getCssFiles() as $file) {
+                    $result['css'] .= static::getCssTag($file);
+                }
+            }
+            if ($module instanceof SubmoduleProviderInterface) {
+                $subResult = self::getAdditionalResourcesForModules($module->getSubModules());
+                $result['js'] .= $subResult['js'];
+                $result['css'] .= $subResult['css'];
+            }
+        }
+        return $result;
+    }
+
+    public static function getAdditionalResourcesForModule(ResourceProviderInterface $module): array
+    {
+        $result = [
+            'js' => '',
+            'css' => '',
+        ];
+        foreach ($module->getJavaScriptFiles() as $file) {
+            $result['js'] .= static::getJsTag($file);
+        }
+        foreach ($module->getCssFiles() as $file) {
+            $result['css'] .= static::getCssTag($file);
+        }
+        return $result;
+    }
+
+    /**
+     * Returns a link tag with the admin panel stylesheet
+     * defined using TBE_STYLES
+     *
+     * @return string
+     */
+    protected static function getAdminPanelStylesheet(): string
+    {
+        $result = '';
+        if (!empty($GLOBALS['TBE_STYLES']['stylesheets']['admPanel'])) {
+            $stylesheet = GeneralUtility::locationHeaderUrl($GLOBALS['TBE_STYLES']['stylesheets']['admPanel']);
+            $result = '<link rel="stylesheet" type="text/css" href="' .
+                      htmlspecialchars($stylesheet, ENT_QUOTES | ENT_HTML5) . '" />';
+        }
+        return $result;
+    }
+
+    /**
+     * Get a css tag for file - with absolute web path resolving
+     *
+     * @param string $cssFileLocation
+     * @return string
+     */
+    protected static function getCssTag(string $cssFileLocation): string
+    {
+        $css = '<link type="text/css" rel="stylesheet" href="' .
+               htmlspecialchars(
+                   PathUtility::getAbsoluteWebPath(GeneralUtility::getFileAbsFileName($cssFileLocation)),
+                   ENT_QUOTES | ENT_HTML5
+               ) .
+               '" media="all" />';
+        return $css;
+    }
+
+    /**
+     * Get a script tag for JavaScript with absolute paths
+     *
+     * @param string $jsFileLocation
+     * @return string
+     */
+    protected static function getJsTag(string $jsFileLocation): string
+    {
+        $js = '<script type="text/javascript" src="' .
+              htmlspecialchars(
+                  PathUtility::getAbsoluteWebPath(GeneralUtility::getFileAbsFileName($jsFileLocation)),
+                  ENT_QUOTES | ENT_HTML5
+              ) .
+              '"></script>';
+        return $js;
+    }
+
+    /**
+     * Return a string with tags for main admin panel resources
+     *
+     * @return array
+     */
+    public static function getResources(): array
+    {
+        $jsFileLocation = 'EXT:adminpanel/Resources/Public/JavaScript/AdminPanel.js';
+        $js = ResourceUtility::getJsTag($jsFileLocation);
+        $cssFileLocation = 'EXT:adminpanel/Resources/Public/Css/adminpanel.css';
+        $css = ResourceUtility::getCssTag($cssFileLocation);
+
+        return [
+            'css' => $css . ResourceUtility::getAdminPanelStylesheet(),
+            'js' => $js,
+        ];
+    }
+}

typo3/sysext/adminpanel/Classes/Utility/StateUtility.php

@@ -0,0 +1,69 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\Utility;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Backend\FrontendBackendUserAuthentication;
+
+/**
+ * Helper class to check if the admin panel is enabled and active from outside
+ *
+ * Useful for initialization, checks in early hooks or middleware implementations
+ */
+class StateUtility
+{
+    /**
+     * Checks if adminPanel was configured to be shown
+     *
+     * @return bool
+     */
+    public static function isActivatedForUser(): bool
+    {
+        $beUser = $GLOBALS['BE_USER'] ?? null;
+        if ($beUser instanceof FrontendBackendUserAuthentication) {
+            $adminPanelConfiguration = $beUser->getTSConfig()['admPanel.'] ?? [];
+            // set legacy config
+            $beUser->extAdminConfig = $adminPanelConfiguration;
+            if (isset($adminPanelConfiguration['enable.'])) {
+                // only enabled if at least one module is enabled.
+                return (bool)array_filter($adminPanelConfiguration['enable.']);
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Returns true if admin panel was activated
+     * (switched "on" via GUI)
+     *
+     * @return bool
+     */
+    public static function isOpen(): bool
+    {
+        $beUser = $GLOBALS['BE_USER'] ?? null;
+        return (bool)($beUser->uc['AdminPanel']['display_top'] ?? false);
+    }
+
+    public static function isActivatedInTypoScript(): bool
+    {
+        return (bool)($GLOBALS['TSFE']->config['config']['admPanel'] ?? false);
+    }
+
+    public static function isHiddenForUser(): bool
+    {
+        return (bool)($GLOBALS['BE_USER']->extAdminConfig['hide'] ?? false);
+    }
+}

typo3/sysext/adminpanel/Classes/View/AdminPanelView.php

@@ -0,0 +1,480 @@
+<?php
+
+namespace TYPO3\CMS\Adminpanel\View;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Adminpanel\ModuleApi\ConfigurableInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\DataProviderInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ModuleInterface;
+use TYPO3\CMS\Adminpanel\Service\EditToolbarService;
+use TYPO3\CMS\Adminpanel\Utility\StateUtility;
+use TYPO3\CMS\Backend\FrontendBackendUserAuthentication;
+use TYPO3\CMS\Core\Cache\CacheManager;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Core\Utility\PathUtility;
+
+/**
+ * View class for the admin panel in frontend editing.
+ *
+ * @internal
+ */
+class AdminPanelView
+{
+    /**
+     * Force preview
+     *
+     * @var bool
+     */
+    protected $ext_forcePreview = false;
+
+    /**
+     * Array of adminPanel modules
+     *
+     * @var \TYPO3\CMS\Adminpanel\ModuleApi\ModuleInterface[]
+     */
+    protected $modules = [];
+
+    /**
+     * @var array
+     */
+    protected $configuration;
+
+    /**
+     * Setter for injecting new-style modules
+     *
+     * @see \TYPO3\CMS\Adminpanel\Controller\MainController::render()
+     * @param array $modules
+     * @internal
+     */
+    public function setModules(array $modules): void
+    {
+        $this->modules = $modules;
+    }
+
+    /**
+     * Returns LanguageService
+     *
+     * @return \TYPO3\CMS\Core\Localization\LanguageService
+     */
+    protected function getLanguageService()
+    {
+        return $GLOBALS['LANG'];
+    }
+
+    /**
+     * Returns the current BE user.
+     *
+     * @return FrontendBackendUserAuthentication
+     */
+    protected function getBackendUser()
+    {
+        return $GLOBALS['BE_USER'];
+    }
+
+    /*****************************************************
+     * Admin Panel: Deprecated API
+     ****************************************************/
+
+    /**
+     * Backwards compatibility method ensuring hook still gets the same content as before
+     *
+     * @deprecated since TYPO3 v9 - remove when hook can be removed
+     * @internal
+     * @return string
+     * @throws \UnexpectedValueException
+     */
+    public function callDeprecatedHookObject(): string
+    {
+        $moduleContent = '';
+        if (StateUtility::isOpen()) {
+            foreach ($this->modules as $module) {
+                $moduleContent .= $this->getModule($module);
+            }
+
+            foreach (
+                $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tslib/class.tslib_adminpanel.php']['extendAdminPanel']
+                ??
+                [] as $className
+            ) {
+                trigger_error(
+                    'The hook $GLOBALS[TYPO3_CONF_VARS][SC_OPTIONS][tslib/class.tslib_adminpanel.php][extendAdminPanel] will be removed in TYPO3 v10.0, register an AdminPanelModule instead.',
+                    E_USER_DEPRECATED
+                );
+                $hookObject = GeneralUtility::makeInstance($className);
+                if (!$hookObject instanceof AdminPanelViewHookInterface) {
+                    throw new \UnexpectedValueException(
+                        $className . ' must implement interface ' . AdminPanelViewHookInterface::class,
+                        1311942539
+                    );
+                }
+                $content = $hookObject->extendAdminPanel($moduleContent, $this);
+                if ($content) {
+                    $moduleContent .= '<div class="typo3-adminPanel-section typo3-adminPanel-section-open">';
+                    $moduleContent .= '  <div class="typo3-adminPanel-section-body">';
+                    $moduleContent .= '    ' . $content;
+                    $moduleContent .= '  </div>';
+                    $moduleContent .= '</div>';
+                }
+            }
+        }
+        return $moduleContent;
+    }
+
+    /**
+     * Render a single module with header panel
+     *
+     * @deprecated since TYPO3 v9 - only used in deprecated hook call (which triggers the corresponding deprecation error)
+     * @param ModuleInterface $module
+     * @return string
+     */
+    protected function getModule(ModuleInterface $module): string
+    {
+        $output = [];
+
+        if ($module instanceof ConfigurableInterface && $module->isEnabled()) {
+            $output[] = '<div class="typo3-adminPanel-section typo3-adminPanel-section-open">';
+            $output[] = '  <div class="typo3-adminPanel-section-title">';
+            $output[] = '    ' . $this->getSectionOpenerLink($module);
+            $output[] = '  </div>';
+            $output[] = '<div class="typo3-adminPanel-section-body">';
+            $output[] = '  ' . $module->getContent();
+            $output[] = '</div>';
+            $output[] = '</div>';
+        }
+
+        if ($module instanceof DataProviderInterface) {
+            foreach ($module->getJavaScriptFiles() as $javaScriptFile) {
+                $output[] =
+                    '<script src="' .
+                    PathUtility::getAbsoluteWebPath(GeneralUtility::getFileAbsFileName($javaScriptFile)) .
+                    '"></script>';
+            }
+        }
+
+        return implode('', $output);
+    }
+
+    /*****************************************************
+     * Admin Panel Layout Helper functions
+     ****************************************************/
+
+    /**
+     * Wraps a string in a link which will open/close a certain part of the Admin Panel
+     *
+     * @deprecated since TYPO3 v9, will be removed in TYPO3 v10.0. Only used in deprecated hook call (which triggers the corresponding deprecation error)
+     * @param ModuleInterface $module
+     * @return string
+     */
+    protected function getSectionOpenerLink(ModuleInterface $module): string
+    {
+        $identifier = $module->getIdentifier();
+        $onclick = 'document.TSFE_ADMIN_PANEL_FORM[' .
+                   GeneralUtility::quoteJSvalue('TSFE_ADMIN_PANEL[display_' . $identifier . ']') .
+                   '].value=' .
+                   ($this->getBackendUser()->uc['AdminPanel']['display_' . $identifier] ? '0' : '1') .
+                   ';document.TSFE_ADMIN_PANEL_FORM.submit();return false;';
+
+        $output = [];
+        $output[] = '<span class="typo3-adminPanel-section-title-identifier"></span>';
+        $output[] = '<a href="javascript:void(0)" onclick="' . htmlspecialchars($onclick) . '">';
+        $output[] = '  ' . htmlspecialchars($module->getLabel());
+        $output[] = '</a>';
+        $output[] = '<input type="hidden" name="TSFE_ADMIN_PANEL[display_' .
+                    $identifier .
+                    ']" value="' .
+                    1 .
+                    '" />';
+
+        return implode('', $output);
+    }
+
+    /**
+     * Creates the tool bar links for the "edit" section of the Admin Panel.
+     *
+     * @deprecated since TYPO3 v9, will be removed in TYPO3 v10.0. Use EditToolbarService instead or create buttons via fluid
+     * @return string A string containing images wrapped in <a>-tags linking them to proper functions.
+     */
+    public function ext_makeToolBar(): string
+    {
+        trigger_error(
+            'AdminPanelView::ext_makeToolBar() will be removed in TYPO3 v10.0, use fluid and backend uri builder to create a toolbar.',
+            E_USER_DEPRECATED
+        );
+        $editToolbarService = GeneralUtility::makeInstance(EditToolbarService::class);
+        return $editToolbarService->createToolbar();
+    }
+
+    /**
+     * Translate given key
+     *
+     * @param string $key Key for a label in the $LOCAL_LANG array of "EXT:core/Resources/Private/Language/locallang_tsfe.xlf
+     * @param bool $convertWithHtmlspecialchars If TRUE the language-label will be sent through htmlspecialchars
+     * @deprecated since TYPO3 v9, will be removed in TYPO3 v10.0 - only used in deprecated methods
+     * @return string The value for the $key
+     */
+    protected function extGetLL($key, $convertWithHtmlspecialchars = true)
+    {
+        $labelStr = $this->getLanguageService()->getLL($key);
+        if ($convertWithHtmlspecialchars) {
+            $labelStr = htmlspecialchars($labelStr);
+        }
+        return $labelStr;
+    }
+
+    /**
+     * Add an additional stylesheet
+     *
+     * @return string
+     * @deprecated since TYPO3 v9, will be removed in TYPO3 v10.0 - implement AdminPanelModules via the new API (see AdminPanelModuleInterface)
+     */
+    public function getAdminPanelHeaderData()
+    {
+        trigger_error(
+            'AdminPanelView->getAdminPanelHeaderData() will be removed in TYPO3 v10.0. Implement AdminPanelModules via the new API (see AdminPanelModuleInterface).',
+            E_USER_DEPRECATED
+        );
+        $result = '';
+        if (!empty($GLOBALS['TBE_STYLES']['stylesheets']['admPanel'])) {
+            $stylesheet = GeneralUtility::locationHeaderUrl($GLOBALS['TBE_STYLES']['stylesheets']['admPanel']);
+            $result = '<link rel="stylesheet" type="text/css" href="' .
+                      htmlspecialchars($stylesheet, ENT_QUOTES | ENT_HTML5) . '" />';
+        }
+        return $result;
+    }
+
+    /**
+     * Checks if an Admin Panel section ("module") is available for the user. If so, TRUE is returned.
+     *
+     * @param string $key The module key, eg. "edit", "preview", "info" etc.
+     * @return bool
+     * @deprecated since TYPO3 v9, will be removed in TYPO3 v10.0 - implement AdminPanelModules via the new API (see AdminPanelModuleInterface)
+     */
+    public function isAdminModuleEnabled($key)
+    {
+        trigger_error(
+            'AdminPanelView->isAdminModuleEnabled() will be removed in TYPO3 v10.0. Implement AdminPanelModules via the new API (see AdminPanelModuleInterface).',
+            E_USER_DEPRECATED
+        );
+        $result = false;
+        // Returns TRUE if the module checked is "preview" and the forcePreview flag is set.
+        if ($key === 'preview' && $this->ext_forcePreview) {
+            $result = true;
+        } elseif (!empty($this->configuration['enable.']['all'])) {
+            $result = true;
+        } elseif (!empty($this->configuration['enable.'][$key])) {
+            $result = true;
+        }
+        return $result;
+    }
+
+    /**
+     * Saves any change in settings made in the Admin Panel.
+     *
+     * @deprecated since TYPO3 v9, will be removed in TYPO3 v10.0 - implement AdminPanelModules via the new API (see AdminPanelModuleInterface)
+     */
+    public function saveConfigOptions()
+    {
+        trigger_error(
+            'AdminPanelView->saveConfigOptions() will be removed in TYPO3 v10.0. Implement AdminPanelModules via the new API (see AdminPanelModuleInterface).',
+            E_USER_DEPRECATED
+        );
+        $input = GeneralUtility::_GP('TSFE_ADMIN_PANEL');
+        $beUser = $this->getBackendUser();
+        if (is_array($input)) {
+            // Setting
+            $beUser->uc['AdminPanel'] = array_merge(
+                !is_array($beUser->uc['AdminPanel']) ? [] : $beUser->uc['AdminPanel'],
+                $input
+            );
+            unset($beUser->uc['AdminPanel']['action']);
+
+            foreach ($this->modules as $module) {
+                if ($module->isEnabled()) {
+                    // We use TYPO3_REQUEST for compatibility reasons. The object and this method are deprecated anyway, this should be fine.
+                    $module->onSubmit($input, $GLOBALS['TYPO3_REQUEST']);
+                }
+            }
+            // Saving
+            $beUser->writeUC();
+            // Flush fluid template cache
+            $cacheManager = new CacheManager();
+            $cacheManager->setCacheConfigurations($GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']);
+            $cacheManager->getCache('fluid_template')->flush();
+        }
+    }
+
+    /**
+     * Returns the value for an Admin Panel setting.
+     *
+     * @param string $sectionName Module key
+     * @param string $val Setting key
+     * @return mixed The setting value
+     * @deprecated since TYPO3 v9, will be removed in TYPO3 v10.0 - implement AdminPanelModules via the new API (see AdminPanelModuleInterface)
+     */
+    public function extGetFeAdminValue($sectionName, $val = '')
+    {
+        trigger_error(
+            'AdminPanelView->extGetFeAdminValue() will be removed in TYPO3 v10.0. Implement AdminPanelModules via the new API (see AdminPanelModuleInterface).',
+            E_USER_DEPRECATED
+        );
+        if (!$this->isAdminModuleEnabled($sectionName)) {
+            return null;
+        }
+
+        $beUser = $this->getBackendUser();
+        // Exceptions where the values can be overridden (forced) from backend:
+        // deprecated
+        if (
+            $sectionName === 'edit' && (
+                $val === 'displayIcons' && $this->configuration['module.']['edit.']['forceDisplayIcons'] ||
+                $val === 'displayFieldIcons' && $this->configuration['module.']['edit.']['forceDisplayFieldIcons'] ||
+                $val === 'editNoPopup' && $this->configuration['module.']['edit.']['forceNoPopup']
+            )
+        ) {
+            return true;
+        }
+
+        // Override all settings with user TSconfig
+        if ($val && isset($this->configuration['override.'][$sectionName . '.'][$val])) {
+            return $this->configuration['override.'][$sectionName . '.'][$val];
+        }
+        if (!$val && isset($this->configuration['override.'][$sectionName])) {
+            return $this->configuration['override.'][$sectionName];
+        }
+
+        $returnValue = $val ? $beUser->uc['AdminPanel'][$sectionName . '_' . $val] : 1;
+
+        // Exception for preview
+        if ($sectionName === 'preview' && $this->ext_forcePreview) {
+            return !$val ? true : $returnValue;
+        }
+
+        // See if the menu is expanded!
+        return $this->isAdminModuleOpen($sectionName) ? $returnValue : null;
+    }
+
+    /**
+     * Enables the force preview option.
+     *
+     * @deprecated since TYPO3 v9, will be removed in TYPO3 v10.0 - see AdminPanelModule: Preview
+     */
+    public function forcePreview()
+    {
+        trigger_error(
+            'AdminPanelView->forcePreview() will be removed in TYPO3 v10.0. Use new AdminPanel Preview Module instead.',
+            E_USER_DEPRECATED
+        );
+        $this->ext_forcePreview = true;
+    }
+
+    /**
+     * Returns TRUE if admin panel module is open
+     *
+     * @param string $key Module key
+     * @return bool TRUE, if the admin panel is open for the specified admin panel module key.
+     * @deprecated since TYPO3 v9, will be removed in TYPO3 v10.0 - use new AdminPanel API instead
+     */
+    public function isAdminModuleOpen($key)
+    {
+        trigger_error(
+            'AdminPanelView->isAdminModuleOpen() will be removed in TYPO3 v10.0. Use new AdminPanel API instead.',
+            E_USER_DEPRECATED
+        );
+        return $this->getBackendUser()->uc['AdminPanel']['display_top'] &&
+               $this->getBackendUser()->uc['AdminPanel']['display_' . $key];
+    }
+
+    /**
+     * Returns a row (with 4 columns) for content in a section of the Admin Panel.
+     * It will take $pre as a key to a label to display and $element as the content to put into the forth cell.
+     *
+     * @param string $title Key to label
+     * @param string $content The HTML content for the forth table cell.
+     * @param string $checkbox The HTML for a checkbox or hidden fields.
+     * @param string $innerDivClass The Class attribute for the td element.
+     * @param string $outerDivClass The Class attribute for the tr element.
+     * @return string HTML table row.
+     * @see extGetHead()
+     * @deprecated since TYPO3 v9, will be removed in TYPO3 v10.0 - use new AdminPanel API instead
+     */
+    public function extGetItem($title, $content = '', $checkbox = '', $outerDivClass = null, $innerDivClass = null)
+    {
+        trigger_error(
+            'AdminPanelView->extGetItem() will be removed in TYPO3 v10.0. Use new AdminPanel API instead.',
+            E_USER_DEPRECATED
+        );
+        $title = $title ? '<label for="' . htmlspecialchars($title) . '">' . $this->extGetLL($title) . '</label>' : '';
+        $out = '';
+        $out .= (string)$outerDivClass ? '<div class="' . htmlspecialchars($outerDivClass) . '">' : '<div>';
+        $out .= (string)$innerDivClass ? '<div class="' . htmlspecialchars($innerDivClass) . '">' : '<div>';
+        $out .= $checkbox . $title . $content . '</div></div>';
+        return $out;
+    }
+
+    /**
+     * Returns a row (with colspan=4) which is a header for a section in the Admin Panel.
+     * It will have a plus/minus icon and a label which is linked so that it submits the form which surrounds the whole Admin Panel when clicked, alterting the TSFE_ADMIN_PANEL[display_' . $pre . '] value
+     * See the functions get*Module
+     *
+     * @param string $sectionSuffix The suffix to the display_ label. Also selects the label from the LOCAL_LANG array.
+     * @return string HTML table row.
+     * @see extGetItem()
+     * @deprecated since TYPO3 v9, will be removed in TYPO3 v10.0 - use new AdminPanel API instead
+     */
+    public function extGetHead($sectionSuffix)
+    {
+        trigger_error(
+            'AdminPanelView->extGetHead() will be removed in TYPO3 v10.0. Use new AdminPanel API instead.',
+            E_USER_DEPRECATED
+        );
+        return $this->linkSectionHeader($sectionSuffix, $this->extGetLL($sectionSuffix));
+    }
+
+    /**
+     * Wraps a string in a link which will open/close a certain part of the Admin Panel
+     *
+     * @param string $sectionSuffix The code for the display_ label/key
+     * @param string $sectionTitle Title (HTML-escaped)
+     * @param string $className The classname for the <a> tag
+     * @return string $className Linked input string
+     * @see extGetHead()
+     * @deprecated since TYPO3 v9, will be removed in TYPO3 v10.0 - use new AdminPanel API instead
+     */
+    public function linkSectionHeader($sectionSuffix, $sectionTitle, $className = '')
+    {
+        trigger_error(
+            'AdminPanelView->linkSectionHeader() will be removed in TYPO3 v10.0. Use new AdminPanel API instead.',
+            E_USER_DEPRECATED
+        );
+        $onclick = 'document.TSFE_ADMIN_PANEL_FORM[' .
+                   GeneralUtility::quoteJSvalue('TSFE_ADMIN_PANEL[display_' . $sectionSuffix . ']') .
+                   '].value=' .
+                   ($this->getBackendUser()->uc['AdminPanel']['display_' . $sectionSuffix] ? '0' : '1') .
+                   ';document.TSFE_ADMIN_PANEL_FORM.submit();return false;';
+
+        $output = [];
+        $output[] = '<span class="typo3-adminPanel-section-title-identifier"></span>';
+        $output[] = '<a href="javascript:void(0)" onclick="' . htmlspecialchars($onclick) . '">';
+        $output[] = '  ' . $sectionTitle;
+        $output[] = '</a>';
+        $output[] = '<input type="hidden" name="TSFE_ADMIN_PANEL[display_' .
+                    $sectionSuffix .
+                    ']" value="' .
+                    (int)$this->isAdminModuleOpen($sectionSuffix) .
+                    '" />';
+
+        return implode('', $output);
+    }
+}

typo3/sysext/adminpanel/Classes/View/AdminPanelViewHookInterface.php

@@ -0,0 +1,32 @@
+<?php
+namespace TYPO3\CMS\Adminpanel\View;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+/**
+ * Interface for classes which hook into AdminPanelView
+ *
+ * @deprecated since TYPO3 v9 will be removed in TYPO3 v10.0 - see AdminPanelModuleInterface
+ */
+interface AdminPanelViewHookInterface
+{
+    /**
+     * Extend the adminPanel
+     *
+     * @param string $moduleContent Content of the admin panel
+     * @param \TYPO3\CMS\Adminpanel\View\AdminPanelView $obj The adminPanel object
+     * @return string Returns content of admin panel
+     */
+    public function extendAdminPanel($moduleContent, AdminPanelView $obj);
+}

typo3/sysext/adminpanel/Classes/ViewHelpers/IsArrayViewHelper.php

@@ -0,0 +1,47 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ViewHelpers;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
+use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
+
+/**
+ * Checks whether the given value is an array
+ *
+ * @internal
+ */
+class IsArrayViewHelper extends AbstractViewHelper
+{
+    public function initializeArguments()
+    {
+        $this->registerArgument('value', 'mixed', 'The variable being checked', true);
+    }
+
+    /**
+     * @param array $arguments
+     * @param \Closure $renderChildrenClosure
+     * @param RenderingContextInterface $renderingContext
+     * @return bool
+     */
+    public static function renderStatic(
+        array $arguments,
+        \Closure $renderChildrenClosure,
+        RenderingContextInterface $renderingContext
+    ): bool {
+        return is_array($arguments['value']);
+    }
+}

typo3/sysext/adminpanel/Classes/ViewHelpers/SpeakingLogLevelViewHelper.php

@@ -0,0 +1,63 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ViewHelpers;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Core\Log\LogLevel;
+use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
+use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
+use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;
+
+/**
+ * Get speaking log level from constant
+ *
+ * @internal
+ */
+class SpeakingLogLevelViewHelper extends AbstractViewHelper
+{
+    use CompileWithRenderStatic;
+
+    /**
+     * First level cache of user names
+     *
+     * @var array
+     */
+    protected static $usernameRuntimeCache = [];
+
+    /**
+     * Initializes the arguments
+     */
+    public function initializeArguments(): void
+    {
+        $this->registerArgument('level', 'int', 'Log Level', true);
+    }
+
+    /**
+     * Resolve user name from backend user id.
+     *
+     * @param array $arguments
+     * @param \Closure $renderChildrenClosure
+     * @param RenderingContextInterface $renderingContext
+     * @return string Username or an empty string if there is no user with that UID
+     */
+    public static function renderStatic(
+        array $arguments,
+        \Closure $renderChildrenClosure,
+        RenderingContextInterface $renderingContext
+    ): string {
+        return LogLevel::getName($arguments['level']);
+    }
+}

typo3/sysext/adminpanel/Classes/ViewHelpers/SubModuleRenderViewHelper.php

@@ -0,0 +1,75 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Adminpanel\ViewHelpers;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use TYPO3\CMS\Adminpanel\ModuleApi\ContentProviderInterface;
+use TYPO3\CMS\Adminpanel\ModuleApi\ModuleData;
+use TYPO3\CMS\Adminpanel\ModuleApi\ModuleDataStorageCollection;
+use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
+use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
+use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;
+
+/**
+ * Render submodule content
+ *
+ * @internal
+ */
+class SubModuleRenderViewHelper extends AbstractViewHelper
+{
+    use CompileWithRenderStatic;
+
+    /**
+     * First level cache of user names
+     *
+     * @var array
+     */
+    protected static $usernameRuntimeCache = [];
+
+    /**
+     * Initializes the arguments
+     */
+    public function initializeArguments(): void
+    {
+        $this->registerArgument(
+            'module',
+            ContentProviderInterface::class,
+            'SubModule instance to be rendered',
+            true
+        );
+        $this->registerArgument('data', ModuleDataStorageCollection::class, 'Data to be used for rendering', true);
+    }
+
+    /**
+     * Resolve user name from backend user id.
+     *
+     * @param array $arguments
+     * @param \Closure $renderChildrenClosure
+     * @param RenderingContextInterface $renderingContext
+     * @return string Username or an empty string if there is no user with that UID
+     */
+    public static function renderStatic(
+        array $arguments,
+        \Closure $renderChildrenClosure,
+        RenderingContextInterface $renderingContext
+    ): string {
+        $module = $arguments['module'];
+        /** @var \TYPO3\CMS\Adminpanel\ModuleApi\ModuleDataStorageCollection $data */
+        $data = $arguments['data'];
+        $moduleData = $data->contains($module) ? $data->offsetGet($module) : new ModuleData();
+        return $module->getContent($moduleData);
+    }
+}

typo3/sysext/adminpanel/Configuration/Backend/AjaxRoutes.php

@@ -0,0 +1,16 @@
+<?php
+
+/**
+ * Definitions for routes provided by EXT:adminpanel
+ * Contains all AJAX-based routes for entry points
+ */
+return [
+    'adminPanel_saveForm' => [
+        'path' => '/adminpanel/form/save',
+        'target' => \TYPO3\CMS\Adminpanel\Controller\AjaxController::class . '::saveDataAction'
+    ],
+    'adminPanel_toggle' => [
+        'path' => '/adminpanel/toggleActiveState',
+        'target' => \TYPO3\CMS\Adminpanel\Controller\AjaxController::class . '::toggleActiveState'
+    ],
+];

typo3/sysext/adminpanel/Configuration/RequestMiddlewares.php

@@ -0,0 +1,51 @@
+<?php
+/**
+ * An array consisting of implementations of middlewares for a middleware stack to be registered
+ *  'stackname' => [
+ *      'middleware-identifier' => [
+ *         'target' => classname or callable
+ *         'before/after' => array of dependencies
+ *      ]
+ *   ]
+ */
+return [
+    'frontend' => [
+        'typo3/cms-adminpanel/initiator' => [
+            'target' => \TYPO3\CMS\Adminpanel\Middleware\AdminPanelInitiator::class,
+            'before' => [
+                'typo3/cms-frontend/prepare-tsfe-rendering',
+                'typo3/cms-frontend/page-resolver'
+            ],
+            'after' => [
+                'typo3/cms-frontend/tsfe',
+                'typo3/cms-frontend/authentication',
+                'typo3/cms-frontend/backend-user-authentication',
+            ]
+        ],
+        'typo3/cms-adminpanel/sql-logging' => [
+            'target' => \TYPO3\CMS\Adminpanel\Middleware\SqlLogging::class,
+            'after' => [
+                'typo3/cms-frontend/authentication',
+                'typo3/cms-frontend/backend-user-authentication',
+            ],
+            'before' => [
+                'typo3/cms-frontend/site'
+            ]
+        ],
+        'typo3/cms-adminpanel/data-persister' => [
+            'target' => \TYPO3\CMS\Adminpanel\Middleware\AdminPanelDataPersister::class,
+            'after' => [
+                'typo3/cms-adminpanel/initiator',
+                'typo3/cms-frontend/content-length-headers',
+                'typo3/cms-adminpanel/renderer'
+            ],
+        ],
+        'typo3/cms-adminpanel/renderer' => [
+            'target' => \TYPO3\CMS\Adminpanel\Middleware\AdminPanelRenderer::class,
+            'after' => [
+                'typo3/cms-adminpanel/initiator',
+                'typo3/cms-frontend/content-length-headers'
+            ]
+        ],
+    ]
+];

typo3/sysext/adminpanel/LICENSE.txt

@@ -0,0 +1,345 @@
+Some icons used in the TYPO3 project are retrieved from the "Silk" icon set of
+Mark James, which can be found at http://famfamfam.com/lab/icons/silk/. This
+set is distributed under a Creative Commons Attribution 2.5 License. The
+license can be found at http://creativecommons.org/licenses/by/2.5/.
+---------------------------------
+
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+                            NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.

typo3/sysext/adminpanel/Migrations/Code/ClassAliasMap.php

@@ -0,0 +1,5 @@
+<?php
+return [
+    'TYPO3\\CMS\\Frontend\\View\\AdminPanelView' => \TYPO3\CMS\Adminpanel\View\AdminPanelView::class,
+    'TYPO3\\CMS\\Frontend\\View\\AdminPanelViewHookInterface' => \TYPO3\CMS\Adminpanel\View\AdminPanelViewHookInterface::class
+];

typo3/sysext/adminpanel/Migrations/Code/LegacyClassesForIde.php

@@ -0,0 +1,13 @@
+<?php
+namespace {
+    die('Access denied');
+}
+
+namespace TYPO3\CMS\Frontend\View {
+    class AdminPanelView extends \TYPO3\CMS\Adminpanel\View\AdminPanelView
+    {
+    }
+    interface AdminPanelViewHookInterface extends \TYPO3\CMS\Adminpanel\View\AdminPanelViewHookInterface
+    {
+    }
+}

typo3/sysext/adminpanel/Resources/Private/Language/locallang.xlf

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xliff version="1.0" xmlns:t3="http://typo3.org/schemas/xliff">
+	<file t3:id="1520838123" source-language="en" datatype="plaintext" original="EXT:adminpanel/Resources/Private/Language/locallang.xlf" date="2018-03-31T08:08:00Z"
+		  product-name="adminpanel">
+		<header/>
+		<body>
+			<trans-unit id="deprecatedModuleLabel" resname="deprecatedModuleLabel">
+				<source>General</source>
+			</trans-unit>
+			<trans-unit id="settings.label" resname="settings.label">
+				<source>Settings</source>
+			</trans-unit>
+			<trans-unit id="settings.updateButtonLabel" resname="settings.updateButtonLabel">
+				<source>Update Settings</source>
+			</trans-unit>
+			<trans-unit id="button.close" resname="button.close">
+				<source>Close</source>
+			</trans-unit>
+			<trans-unit id="button.view" resname="button.view">
+				<source>View</source>
+			</trans-unit>
+		</body>
+	</file>
+</xliff>

typo3/sysext/adminpanel/Resources/Private/Language/locallang_cache.xlf

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xliff version="1.0" xmlns:t3="http://typo3.org/schemas/xliff">
+    <file t3:id="1520862804" source-language="en" datatype="plaintext" original="EXT:adminpanel/Resources/Private/Language/locallang_cache.xlf" date="2018-03-12T13:52:00Z"
+          product-name="adminpanel">
+        <header/>
+        <body>
+            <trans-unit id="module.label" resname="module.label">
+                <source>Cache</source>
+            </trans-unit>
+            <trans-unit id="cache.no_cache" resname="cache.no_cache">
+                <source>No caching</source>
+            </trans-unit>
+            <trans-unit id="cache.clear_current" resname="cache.clear_current">
+                <source>Clear cache of current page</source>
+            </trans-unit>
+            <trans-unit id="cache.clear_pages" resname="cache.clear_pages">
+                <source>Clear frontend cache</source>
+            </trans-unit>
+        </body>
+    </file>
+</xliff>